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Sukywukymywukysuky 2 years ago

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Sukywukymywukysuky 2 years ago

Guys i really need help with 1+1+1= x like wtf is x supposed to mean

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Khushi to MAN 2 years ago

100 students appeared for two examination. 60 passed the first, 50 passed the second and 30 passed the both. Find the probability that a student selected at random had failed in both the examination?

(A) 1/5 (B) 1/7 (C) 5/7 (D) 5/6

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Devendra Marghade 2 years ago

Number of passed only in 1st = 60-30 = 30
Number of passed only in 2nd = 50-30 = 20
Total passed atleast in one exam = 30 + 20 + 30 = 80
Total failed in both = 100 - 80 = 20
Therefore required probability = 20/100 = 1/5

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G.S.Kantharao 2 years ago

Both failed =100-(60+50-30)=20
Probability=20/100=1/5

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Kinshuk Sharma 3 years ago

How many of the first 1200 natural numbers are either prime to 6 or to 15?

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Supriya 3 years ago

Two friends decide

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Supriya 3 years ago

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.
How many miles does the pigeon travel

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Devendra Marghade 3 years ago

Ans: 54 miles

Let two friends are A and B, who lives 36 miles apart.
Case-I (Pigeon first flies from B towards A)
Relative speed of Pigeon and A = 18+6 = 24 mph. Time of meeting Pigeon and A=36/24=3/2 hr.
In time 3/2 hrs, distance traveled by A & B=2*6*3/2=18 miles, Remaining distance=36-18=18 miles.
Case-II (Pigeon then flies from A towards B)
Relative speed of Pigeon and B = 18+6 = 24 mph. Time of meeting Pigeon and B=18/24=3/4 hr.
In time 3/4 hrs, distance traveled by A & B=2*6*3/4=9 miles, Remaining distance=18-9=9 miles.
Case-III (Pigeon first flies from B towards A)
Relative speed of Pigeon and A = 18+6 = 24 mph. Time of meeting Pigeon and A=9/24=3/8 hr.
In time 3/8 hrs, distance traveled by A & B=2*6*3/8=9/2 miles, Remaining distance=9 - 9/2=9/2 miles.
Case-IV (Pigeon then flies from A towards B)
Relative speed of Pigeon and B = 18+6 = 24 mph. Time of meeting Pigeon and B=(9/2)/24=3/16 hr.
In time 3/16 hrs, distance traveled by A & B=2*6*3/16=9/4 miles, Remaining distance=(9/2)-(9/4)=9/4 miles.

Thus Pigeon we fly between A and B, for 3/2, 3/4, 3/8, 3/16, ..... hrs (which forms series) until both the friends meets. Therefore total distance traveled by Pigeon=18*(3/2 + 3/4 + 3/8 + 3/16 + ......)=18*3*(~1)=54 miles.

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Satvik 3 years ago

There are 50 employees in a Max. Mink Co. The salaries of 15 of them were each decreased by 10%, and the salary of the rest were each decreased by 5%. Find the percentage decrease in the total salary of the employees.

Reply Like? Yes (8) | No (2)

Devendra Marghade 3 years ago

Let initial salary of each employee be 1.
Total decrease in salary = 50 - [(15*0.9) + (35*0.95)] = 3.25
% Decrease in total salary = (3.25/50)*100 = 6.5%

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G.S.Kantharao 3 years ago

Let ₹100 is the salary of each
15 persons decrease by 10%=> salary =₹90
35 persons salary decreased by 5%=> salary =₹95
Total salary =15*90+35*95=₹1350+₹3325
=₹4675
Less by₹325=>%of less =(325/5000)100
325/50=13/2=>6.5%

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Rohit kumar to RAKHI RAMTEKE 3 years ago

Hi mam , How are you

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Hgh Vallarta Clinic 3 years ago

https://www.hghvallartaclinic.com/growth-hormones-for-kids/

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Hgh Vallarta Clinic 3 years ago

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rishi 3 years ago

If TO + NO = TOO, find the value of O.

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Devendra Marghade 3 years ago

O=0

10
+90
-------
100

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PANKAJ 3 years ago

The proportion of alcohol and water in 3 samples is 3:5, 2:3 and 1:4. A mixture comprising of equal quantities of all three samples is made. The proportion of alcohol and water in the mixture is

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Devendra Marghade 3 years ago

Proportion of alcohol in 3 samples is 3/8, 2/5, 1/5 or 15/40, 16/40, 8/40 respectively
Proportion of water in 3 samples is 5/8, 3/5, 4/5 or 25/40, 24/40, 32/40 respectively
So, when equal quantity of all samples is taken, ratio of alcohol & water = (15+16+8) : (25+24+32) = 39 : 81 = 13 : 27

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Gabriel Ojapah 3 years ago

1. A sample poll of 200 voters revealed the following information concerning three candidates A,B and C of a certain party who were running for three different offices.

28 in favour of both A and B, 42 in favour of B not A or C, 98 in favour of AorB but not C, 122 in favour of B or C but not A, 64 in favour of C but not A or B, 14 in favour of A and C but not B.

How many of the voters were in favour of all the three candidates?

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kriyasri 3 years ago

https://www.fieldengineer.com/sd-wan/what-is-sd-wan

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kriyasri 3 years ago

visit us @ https://www.fieldengineer.com/sd-wan/what-is-sd-wan

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kriyasri 3 years ago

https://www.fieldengineer.com/sd-wan/what-is-sd-wan

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Pooja k 3 years ago

I was born in a century in which the last year of the previous century was a leap year. I was born in the first year after the first leap year of the century. I was born after 1200 A.D. and before 2000 A.D. What is the year of my birth?

Pls Solve

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Devendra Marghade 3 years ago

Between year 1200 and 2000, leap century year will be 1600 (Century divisible by 400)
First leap year after 1600 is 1604.
So year of birth is 1 year after 1604 i. e. 1605.

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master ishit Jain 3 years ago

Pls.can anyone send me
Python programming sample paper of class ix with solutions on mail
ishitjainitcreator@gmail.com

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Aditi 3 years ago

0 6 6 20 20 42 ??????

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sanjeev 3 years ago

first term = 0*1 =0
second term 1*0 =0
third term: 2*3 =6
fourth term: 3*2 = 6
fifth term: 4*5 =20
sixth term : 5*4 =20
seventh term 6*7 = 42
Eight term 7*6 = 42
Nineth term 8*9 = 72
tenth term 9*8 = 72

hence correct answer is 72

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shadab 3 years ago

4. Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 0 mins. If all of them work together, find the

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Priyanka 3 years ago

. A vessel contains mixture of milk and water in the ratio of 7:1 respectively. 24 liters mixture
is removed from the vessel and if the quantity of remaining milk in the vessel is 56 liters, then find
quantity of water in the vessel initially.

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Devendra Marghade 3 years ago

Ans: 11 liters

Let, initial mixture contains milk=7x and water=x
Then, quantity of remaining milk after removing 24 liters of mixture=7x - 24*(7/8)=56
56x - 168 = 448
x = 11
.'. Quantity of water in initial mixture = x = 11 liters.

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G.S.Kantharao 3 years ago

Very simple 11lts.
After removing 24 lts the mixture is in the same ratio
Milk:water=7:1=56:w=>w=56*1/8=8lts
In 24 lts removed mixture=24*1/8=3lts.
So total water is 11 ltd.

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Nadir 3 years ago

If stands for /, / stands for -, + stands for. -stands for +.

Then 9/15*9+2

9=?

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Akash 3 years ago

8700 अरब के बीज की स्थिति में है
"नगद 15, 9/8, 6/16, n/20"
19वां दिन चुकाने पर भुगतान की स्थिति होगी

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Vamshi 3 years ago

The average weight of A,B and C is 65kg,if the person D joins them the the average weights of those four persons becomes 70kg, the average weight of B,C and D is 75 kg then the weight of A is (in kgs)

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Devendra Marghade 3 years ago

A+B+C=3x65=195 ---(i)
A+B+C+D=4x70=280 ---(ii)
Eqn (ii) - (i), D=85
Also, B+C+D=3x75=225 => B+C=140 ---(iii)
Eqn (i) - (iii), A=55
Therefore, weight of A=55 Kg.

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G.S.Kantharao 3 years ago

Average of A,B,C,D=70Kg
Sum of A+B+C+D=280Kg
Average of B,C,D=75Kg
Sum of B+C+D=225Kg
A's Weight=280-225=55Kg

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Priyanka 3 years ago

A person sold an article for 1840 Rs. And profit incurred will be 12.5% more than the loss incurred when article is sold for 1500 rs. At what price it should be sell to get 20% profit?

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Devendra Marghade 3 years ago

Ans: Rs. 1992

Let CP=Rs. x, then Profit when SP is 1840 = (112.5/100)*Loss when SP is 1500
(1840-x) = (112.5/100)*(x-1500)
184000 - 100x = 112.5x - 168750
Solving, we get x = 1660
So, SP when profit is 20% = 1660*(120/100) = 1992 Rs.

Like? Yes (1) | No

Hussein Elmahdy 3 years ago

Fifty students have signed up for at least one of the courses German and
English. How many of the 50 students are taking German but not English

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Lav 3 years ago

There is a splendid fountain in the heart of Paris Tourists throw coins into the fountain in the belief that their wishes would come true. At the end of each day, a group of urchins jump into the water and pick up the coins. It is a tradition that they share the amount equally On Friday, had 5 urchins not shown up due to rain, each of those present would have received a Euro more But had it been a sunny day and there had been 15 more urchins, each would have received 2 Euros less, Find the total number of Euros in the fountain on Friday

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Devendra Marghade 3 years ago

Let x urchins gets y Euros each, when all urchins are present, then total Euros=x*y
As per given conditions, (x-5)*(y+1)=xy ⇒ x-5y=5 ---(i) and
(x+15)*(y-2)=xy ⇒ -2x+15y=30 ---(ii)
Solving above equations, we get x=45, y=8
Therefore, total number of Euros=45*8=360

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RAFIQUL ISLAM 3 years ago

what is the odd number is 812,394,192,90,40,16,5

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rishi 3 years ago

https://m4maths.com/35221-What-is-the-output-of-the-following-program-void-main-int-i-2-j-3-k-l-float-a-b.html

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Sourav chanda 3 years ago

If the sum of the first 43 terms of an arithmetic progression is 2967, then find the sum of the 11th and the 33rd terms of the same series.

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G.S.Kantharao 3 years ago

S43=43(2a+42d)/2[through formulaSn=n{2a+(n-1)d}/2]
So S43=43(2a+42d)/2=2967
Now T11=a+10d
T33=a+32d
T11+T33=2a+42d=2967*2/43
=138

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Devendra Marghade 3 years ago

Ans: 138

For A.P. series, here n=43, S=2967. If First term=a, Difference=d, then sum of an A.P. series S=(n/2)[2a + (n-1)d]
2967 = (43/2)(2a + 42d)
69 = a + 21d ---- (i)
Sum of 11th term and 33rd term = (a + 10d) + (a + 32d) = 2a + 42d = 2 x (a + 21d) = 2 x 69 = 138

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Naresh 3 years ago

bank advertises that you can double the money if you invest it with them for 8 years, what is the rate of Interest offered by them?

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Devendra Marghade 3 years ago

Money doubles in 8 years => Interest earned is equal to principal
Let Principal=P, Rate=R %, then P*R*8/100 = P
R = 100/8 = 12.5%

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G.S.Kantharao 3 years ago

8*R**P/100=P
R=100/8=12.5%

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bhanu 3 years ago

Two people are playing with a pair of dies. Instead of numbers, the dies have different colors on
their sides. The first person wins if the same color appears on both the dies and the second
person wins if the colors are different. The odds of their winning are equal. If the first dice has 5
red sides and 1 blue side, find the color(s) on the second one.

Reply Like? Yes | No

Priyanka 3 years ago

3 blue side and 3 red sides then
probability for different colors= 1.3/36+5.3/36=1/2
probability for same colors= 1.3/36+5.3/36=1/2

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Hhj 3 years ago

Hanson Bhaskar have salaries that jointly amount to 10000 per month they spend the same amount monthly and then it is found that the ratio of their savings is 621 which of the following can be considered salary

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YATINKUMAR 3 years ago

When processing flower-nectar into honeybees’ extract, a considerable amount of water gets reduced. How much flower-nectar must be processed to yield 1kg of honey, if nectar contains 50% water and the honey obtained from this nectar contains 15% water?

Reply Like? Yes (2) | No

vedika 3 years ago

If you place 9 at the left end of a five-digit number you will get a six-digit number. This six-digit number is four-times
the six-digit number that you get when you put 9 at the right end of the original five-digit number. What is the sum of
the digits of the five-digit number?

Reply Like? Yes | No (1)

G.S.Kantharao 3 years ago

Sum of their digits is 18

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G.S.Kantharao 3 years ago

G.S.Kantharao 28 Seconds ago
[G.S.Kantharao]
Your number is 23076.
If you place 9 on left side=923076
If you place 9 on right side =230769
923076=4*230769.
Sum of their digits is 2+3+0+7+6=18

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Prashant Yadav 3 years ago

I am Prashant Yadav

Reply Like? Yes (1) | No

S Aasik 3 years ago

How to select TCS guide me

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Pargat Pal Singh 3 years ago

For puzzle dated 22.11.2021, I have given answera as option 8 which is displayed correctly in home page.
But -1 points are given. please check.

I think other members may be getting same response .

Reply Like? Yes | No (1)

Akhil 3 years ago

Sunil completes a work in 4 days whereas Dinesh completes the work in 6 days.Ramesh works 1(1)/(2) times as fast as Sunil.How many days it will take for the three together to complete the work?

Reply Like? Yes | No

Devendra Marghade 3 years ago

24/19 days

1 day work of Sunil=1/4, Dinesh=1/6 and Ramesh=(3/2)*(1/4)=3/8
In 1 day, together all 3 can complete 1/4 + 1/6 + 3/8 = 19/24
So, the work will be completed in 24/19 or 1 (5/19) days.

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Ranjeet Shah 3 years ago

chairis code as hcari, then shame is code as

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fasikaw tesfa 4 years ago

Dashin bank all choth

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fasikaw tesfa 4 years ago

Dashim bank 1 ermja kedami

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Arihant 4 years ago

The number of 5-digit odd numbers that can be made from number 12345 are

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Devendra Marghade 4 years ago

To get odd numbers, digit at unit place must be 1, 3 or 5.
When 1 is at unit place, total 5 digit numbers = 4 x 3 x 2 = 24
When 3 is at unit place, total 5 digit numbers = 4 x 3 x 2 = 24
Similarly, for 5 at unit place, total 5 digit numbers = 4 x 3 x 2 = 24
Therefore, Total 5-digit odd numbers = 24 + 24 + 24 = 72

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G.S.Kantharao 4 years ago

Total 5-digited numbers=5!=120
Numbers which ends with 2 or 4=2*4!=48
Number of odds formed =120-48=72

Like? Yes (4) | No

Y. Nagaraju 4 years ago

I wish this the best platform for growing skills up

Reply Like? Yes (1) | No

Pratha mishra 4 years ago

main()
{
char s[ ]="man";
int i;
for(i=0;s[ i ];i++)
printf("n%c%c%c%c",s[ i ],*(s+i),*(i+s),i[s]);

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Dr.Dipin Singh 4 years ago

What is the similarity between the following pairs?
1. 12 & 21
2. 13 & 31
3. 102 & 201

Reply Like? Yes (1) | No (2)

Deepika Gowda 4 years ago

12 reverse order 21
13 reverse order 31
102 reverse order 201

Like? Yes (3) | No (1)

Shashank Mishra 3 years ago

pallindrom numbers

Like? Yes | No (3)

rithwik 4 years ago

one of the value of x in log(x+7)(36x+9)=2

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