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S.Jagasree alias Lalitha 9 years ago

The sum of four consecutive two digit odd numbers , when divided by 10, becomes a perfect square. Which of the following can possibly be one of these four numbers?

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Jas 9 years ago

8432: 7
9213: 0
5144: 16
9064: 9
7103: ??
Crack this with logic....

Reply Like? Yes (29) | No (3)

saraswathy thanigajalam 9 years ago

A boat takes a circular route to travel a total distance of 24km to reach its initial position. the speed of the boat in still water is 5km/hr and the speed of the stream is 3km/hr.how much time does the boat travels upstream and downstream respectively? please how to solve this fnds? plz say soon

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saraswathy thanigajalam 9 years ago

A dividend of rs.504 lakhs for shares was announced by a company.100 employees cum share holders get rs.3.60 lakhs each and the share holders who is not the employee gets rs.2.40lakhs each. how many shareholders are there who are not employees? how to solve this questions if anyone knows please reply my id is tsaraswathy@ymail.com plz rply asasp

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Madhumathi 9 years ago

3.60*100 + 2.40*x=504
360+2.40x=504
2.40x=144
x=144/2.40
x=60

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Madhumathi 9 years ago

If (x+y)/(x−y)=4/3 and x ≠ 0, then what percentage (to the nearest integer) of x + 3y is
x – 3y ?

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saneer wadhwa 9 years ago

The radius of a cone is times the height of the cone. A cube of of maximum possible volume is cut from the same cone. What is the ratio of the volume of the the cone to the volume of the cube?

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Subhajit Banerjee to G.silviya 9 years ago

chossss!!!!!!

njknkjnkjn

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Deepak prajapati 9 years ago

Data suficiency
what is the value of x? data suficiency
(1)x^2+1=1/(x^2+1)
(2)x^3+X^2=0

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saran 9 years ago

36) What are the last two digits of expression 5306^214 ?

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Onlinepsa.in 9 years ago

5306^214 = (5300+ 6)^214
If you work out the binomial expansion every term will have atleast 2 zeroes in the end except 6^214.

Last two digits of (5300+ 6)^214= Last two digits of 6^214

6^214 = 2^214 * 3^214

2^214 = 2^(10*21+4)
= (1024)^21 * 2^4
= (24)^21 * 2^4
=24^odd * 2^4
=24* 16 [ 24 to the odd power is always 24 and even power is always 76]
=84

3^214 = 3^(4*53+2)
= (81)^53 * 09
= 41 * 9
=69

Last two digits of 6^214 = 84*69= 96
-----------------

Alternatively, you can observe the pattern of 6^n [ where n=1,2,3,4 and so on]

The last two digits of the pattern 06, 36, 16, 96, 76, 56, 36, 16, 96, 76, 56 ....
[Only first power gives 06, all others are repetitive after every 5 numbers. If you could remove first power, you would see a

repeatition of numbers].

First thing to do is to subtract one from 214 power. Now, we need to get the remainder when we divide 213 by 5. Remainder is 3.
Thus, last two digits will be 3rd in the repeating pattern ie. 96.

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Onlinepsa.in 9 years ago

Hope you understood the two methods!

Thanks,
onlinepsa.in

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Deepak Khanwalkar to rachana dhekane 9 years ago

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn i l baby

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RAHUL KUMAR 9 years ago

Data on 450 candidates,who took an examination in social science,mathematics and science

Passed in all subjects 167
Failed in all subjects 60
Failed in social science 175
Failed in mathematics 199
Failed in science 191
Passed in social science only 62
Passed in mathematics only 48
Passed in science only 52

How many failed in social science only
How many failed in one subject only
How many passed in mathematics and at least one more subjects
How many failed in two subjects only
How many passed at least in one subject

Reply Like? Yes (237) | No (22)

kriti kankariya 9 years ago

sry for mistake in previous ans
this is correct one---
How many failed in social science only = 115
How many failed in one subject only = 21+25+15 = 61
How many passed in mathematics and at least one more subjects = 21+167+15 = 205
How many failed in two subjects only = 62+48+52 = 162
How many passed at least in one subject = 450-60 = 390

Like? Yes (165) | No (80)

ARUN SINGH RAWAT 8 years ago

send ans /..............................

Like? Yes (15) | No (5)

jeni ta 9 years ago

a women can do a piece of work in 50 days in how many days will the one third of women be able to finish two third of the work.. if any one know the answer reply me in jenita464@gmail.com

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Devendra Marghade 9 years ago

100 days

1 woman ----- 1 work ---- 50 days
1/3 woman---- 1 work ---- 50*3=150 days
1/3 woman---- 2/3 work--- 150*2/3=100 days

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vivek 9 years ago

what is the largest number that is expressed with 3 numerical figures?

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shubham kumar 9 years ago

4) 5__6. What operator should be placed in between these two such that the result: 5

Reply Like? Yes (1) | No

REVATHIVENKATESAN 9 years ago

|x|+|y|=7 what is the sum of minimum and maximum values of x and y?

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saneer wadhwa 9 years ago

6 +8 = 14
because of maximum and minimum value

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chithra 9 years ago

Reply Like? Yes (15) | No (3)

deepa 9 years ago

ans for this pls

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kutti 9 years ago

As we know the formula for
speed of upstream = (u-v)
speed of downstream = (u+v)

Solution :-
Speed of upstream = (5-3) = 2 km/hr
Speed of downstream = (5+3) = 8km/hr

As they asked about time of travel:-
total distance / speed of upstream = 24km / 2km/hr = 12hrs
total distance / speed of downstream = 24km / 8km/hr = 3hrs

Ans= 12,3

Like? Yes (8) | No

saurabh kumar 9 years ago

downstream =12/5+3=3/2=1&1/2hr
upstream=12/5-3=6 hr

Like? Yes (2) | No (1)

arya 9 years ago

speed in still water=(d+u)/2 =5
speed of stream=(d-u)/2 =3
then, u=4 & d=6
no total distance trvelled =24
so, tym taken to travel upstream12/4=3 hrs
& tym taken to travel downstream=12/6=2hrs

Like? Yes (2) | No

SUMITHRA KIRUBAKARAN 9 years ago

Reply Like? Yes (1) | No

Bukesh 9 years ago

how many 5 digits no can be formed using 0,1,2,4,6,8 which is divisible by 4? asked in infosys

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kriti kankariya 9 years ago

total possible last 2 digits with no. of possible no. can b formed are
20 -- 24
40 -- 24
60 -- 24
80 -- 24
04 -- 24
08 -- 24
12 -- 18
16 -- 18
24 -- 18
62 -- 18
28 -- 18
64 -- 18
48 -- 18
84 -- 18
68 -- 18
adding all--
306
which is the ans

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Bukesh 9 years ago

how many 5 digits no can be formed using 0,1,2,4,6,8 which is divisible by 4?

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Vaibhav Lokesh 9 years ago

What is the unit digit of 7777^3333-3333^7777, give the answer with the explanation

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Sunny Arya 9 years ago

Ques. If the sum of two numbers is 55 and the H.C.F. and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:
Op 1: 55/601
Op 2: 601/55
Op 3: 11/120
Op 4: 120/11

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Vaibhav Lokesh 9 years ago

answer is 11/120,
method : product of two numbers = HCFxLCM, so given x+y=55=>x and 55-x are two numbers
x(55-x)=120x5 => x^2-55x+600=0 so after solving u get x=40 and y=15 or x=15 and y=40 either way u get the reciprocal sum as 11/120

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chithra 9 years ago

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bakya 9 years ago

In a city there are few engineering, MBA and CA candidates. Sum of four times the engineering, three times the MBA and 5 times CA candidates is 3650. Also three times CA is equal to two times MBA and three times engineering is equal to two times CA. In total how many MBA candidates are there in the city?

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amar kumar 9 years ago

16/9mba+3mba+10/3mba=3650
mba=450

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bakya 9 years ago

From a square of side 2 cm, equal triangles are cut from its corners to form a regular octagon. We will get an octagon. What is the area of that octagon?

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bakya 9 years ago

77!*(77!-2*54!)^3/(77!+54!)^3 + 54!*(2*77!-54!)^3/(77!+54!)^3

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TARA JANWA 9 years ago

70 students are required to paint a picture. 52 use green color and some children use red, 38 students use both the colors. How many students use red color?

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amar kumar 9 years ago

ans will be
90-70=20

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NRJ Soni 9 years ago

Find the probability that a year chosen at rendom has 53 Mondays.
A) 5/28
B) 3/28
C) 1/28
D) 3/28

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rajalaxmi behera to INDRANIL DAS 9 years ago

plz send me some question paper of infosys
my email id-behera.rajalaxmi@gmail.com
infosys is coming on 10 th sept..plz plz

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venkatesh 9 years ago

2. How many 5 digit no. can be formed wit digits 1, 2, 3, 4, 5, 6 which are divisible by 4 and digits not repeated

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venkatesh 9 years ago

hai friends good morning!

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lalit 9 years ago

While selling a watch, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original price of the watch?

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amar kumar 9 years ago

orginal price of watch is 1020

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Devendra Marghade 9 years ago

1020

If marked price or original price=x, then [x*(100-15)/100] - [x*(100-20)/100]= 51 or
0.85x- 0.8x=51 , 0.05x=51, x=1020

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santosh to RAKESH 9 years ago

how many no can be formed using digits (1,2,3,4,5,6,7,8,9)..such that they are in increasing order(eg:0 12345,345,6789,123456789)???

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amar kumar 9 years ago

0,1,12,123,1234,12345,123456,1234567,12345678,123456789,23,234,2345,23456,234567,2345678,23456789,34,345,3456,34567,345678,3456789,45,456,4567.45678,456789,56,567,5678,56789,67,678,6789,78,789,89,2,3,4,5,6,7,8,9.......................... 46no

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RAKESH 9 years ago

single digits cant be cosidered in inc order
1+2+3+.........+8 = 36

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santosh to RAKESH 9 years ago

A deck of 5 cards (each carrying a distinct number from 1 to 5) is shuffled thoroughly. Two cards are then removed one at time from the deck. What is the probability that the two cards are selected with the number on the first card being one higher than the number on the second card?

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RAKESH 9 years ago

n(s) =5*4
n(e)= {(2,1),(3,2),(4,3),(5,4)} = 4
p = 1/5

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santosh to RAKESH 9 years ago

You have 3bags each containing two marbles.bag A contain 2 white marbles , bag B contaion 2 black marbles,bag C contains one white marble and one block marble. You pick a random bag and take out one marble.it is a white marble.probability that the remaining marble from the same bag is also white ?

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RAKESH 9 years ago

bag can be A or C
1st is white so 2nd can be w/b so p =1/2

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santosh to RAKESH 9 years ago

Abhishek and Aishwarya picked up a ball at random from a bag of M red colour and N yellow coloured balls,one after the another, replacing the ball every time till one of them gets a red ball.The first one to get a red ball is declared as a winner.IF Abhishek wins the game and odds in favour of his winning the game is 3/2 find the ratio of M/N
A)1:1
B)1:2
C)2:3
D)3:2

Reply Like? Yes | No

santosh to RAKESH 9 years ago

1/a - 1/b = 1/c where a,b,c are single digit number and b > a . Then we have to find how many values are possible for a,b,c as per the given conditions..?

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RAKESH 9 years ago

if a.b, c are distinct then
a=bc/(b+c)
two soln (2,3,6)&(2,6,3)

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santosh to RAKESH 9 years ago

assertion reasoning question
ques 1 is x integer
1) x/2 is integer
2) 2x is integer

ques 2 there are three consecutive prime number p,q,r, such that q-p=2 what is the value of r
1)their median is the average of 3 prime number .
2) sum is 15

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RAKESH 9 years ago

1) only 1 is suffice
x must be even integer.
2x=5 then x not integr.

2) either suffice
must be 3,5,7

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santosh to RAKESH 9 years ago

Three numbers A,B,C are such that the difference between the highest and the second highest two-digit numbers formed by using two of A,B and C is 5.Also ,the smallest two two-digit numbers differ by 2.If B>A>C then what is the value of B?

(a)1 (b)6 (c)7 (d)8

Reply Like? Yes | No

RAKESH 9 years ago

BA-BC=5 => A-C=5
CB-CA=2 => B-A=2
adding weget, B-C = 7 => B > 7
from options B= 8 is possible.

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santosh to RAKESH 9 years ago

How many 4 digit numbers can be formed using digits 0,1,2,3,4,5, such that number is divisible by 8??

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santosh to RAKESH 9 years ago

There is a circular table. It has 60 chairs. Drakula came and sit on a chair beside another person. What is the minimum no. of person will be so, that wherever he sits he always gets to sit beside a person

Options: 30, 20, 15, 10

Reply Like? Yes | No

RAKESH 9 years ago

if thre r 6 chairs then
m _ _ m _ or _m_ _ m _ etc in each case mimn number of men = 6/3 = 2

for 60 chairs 60/3 = 20

Like? Yes (1) | No

santosh to RAKESH 9 years ago

A lady bought five books namely A,B,C,D,E to distribute her 3 child. How many ways she can distribute books?

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Devendra Marghade 9 years ago

60

With A,B combinations C or D or E are possible, with A,C combinations B or D or E are possible, with A,D combinations B or C or E are possible, with A,E combinations B or C or D are possible
So total 12 combinations for A are possible for selecting 3 among 5 like (A,B,C), (A,B,D), (A,B,E), (A,C,B), (A,C,D), (A,C,E), (A,D,B), (A,D,C), (A,D,E), (A,E,B), (A,E,C), (A,E,D)
Similar 12 combinations are possible for remaining 4
So total ways=5*12=60

Like? Yes (2) | No

santosh to RAKESH 9 years ago

P is an even number (I think greater than 2 it was given). e is the probability of number of even numbers divisible by p, o is the probability of number of odd number divisible by p and w is the probability of number of whole numbers divisible by p. Then which equation satisfies.
1. w=2 e
2. w=e/2
3. w=o/2
4. not remember

Reply Like? Yes | No

RAKESH 9 years ago

p = ???
odd num cant be divid y even so o =0

Like? Yes | No

santosh to RAKESH 9 years ago

ABC is a right-angle triangle with sides R1, R2 and R3 such that no sides are even simultaneously. If 102 is added to all sides and then squared we get S1, S2, S3 (Sn=square of (Rn+102)). If T= S1+S2+S3.
Then, which is always true for T.
1. divisible by 2 but not by 4
2. divisible by 4 not by 8
3. divisible by 8 not by 4
4. none of the above

Reply Like? Yes | No

RAKESH 9 years ago

as given condn 2 of R1, R2 and R3 will be odd nos
consider tr (3,4,5)
then T = (3+102)^2 + (4+102)^2 + (5+102)^2
= (3^2+4^2+5^2)+ 3*102^2 + 2*102*(3+4+5)
its clear that
T is always divisible by 2 but not by 4

Like? Yes (1) | No

vignesh 9 years ago

A dividend rs 504 lakhs for shares was announced by a company 100 employee cum shareholders get rs 3.60 lakhs each and the share holder who is not the employee gets rs 2.40 lakhs each how many share holders are there who are not employees

Reply Like? Yes (13) | No

bakya 9 years ago

Find the odd man out:
2,8,20,44,83

Reply Like? Yes | No

venkatesh 9 years ago

83 ------------------------------------

Like? Yes | No

amar kumar 9 years ago

2 , 2*2+4 ,8*2+4 , 20*2+4 , 44*2+4=92 so 83 is wrong

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cut Kumar to Rajanikanta Pradhan 9 years ago

2 and 2014 r not co prime so ur solution is wrong

Reply Like? Yes | No

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