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Khushi 3 Months 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

Reply Like? Yes | No (1)

Devendra Marghade 3 Months 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

Like? Yes | No (1)

G.S.Kantharao 3 Months ago

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

Like? Yes | No (1)

sainath reddy 1 year ago

If WAIT + ALL = GIFTS; Then what is the value of G+I+F+T? (If A =6 & S=5)

Reply Like? Yes | No

Devendra Marghade 1 year ago

9 6 0 8
+ 6 7 7
---------
10285
=> W=9, A=6, I=0, T=8, L=7, S=5, G=1, F=2, T=8
So, G+I+F+T=1+0+2+8=11

Like? Yes | No

Ronak 3 years ago

In a election between two parties P and Q, Q is loser. If Q get 25% more votes then he win by the thrice the majority then that of P. If the total number of votes are 4250. How many vote did P get? 1)2250 2)1125 3)2000 4) 1525.. please give solution

Reply Like? Yes (3) | No

Devendra Marghade 3 years ago

3) 2250

Total votes = P + Q = 4250 ---(i)
When Q is loser, majority of P = (P - Q)
When Q gets 25% more votes, then votes of Q = Q + 0.25Q = 1.25Q and votes of P = (P - 0.25Q)
According to given condition, 1.25Q - (P - 0.25Q) = 3*(P - Q)
=> 4P - 4.5Q = 0 ---(ii)
On solving equations (i) & (ii), Q=2000, P=2250

Like? Yes (4) | No

Karan 3 years ago

As per given ststement, Q is the looser.
From given options, only 2250 votes for P satisfies this condition.
No need to waste time to solve in detail while appearing for multiple choice questions test in limited time.

Like? Yes (1) | No

Mohammed Ashraf 4 years ago

2, 35, 104, 209, ? .. what will be next after 209. Please explain with logic

Reply Like? Yes | No

Satyam 4 years ago

2, 35, 104, 209

Difference between 2nd and 1st, = 35 - 2 = 33

Between 3rd and 2nd = 104 - 35 = 69

Between 4th and 3rd = 209 - 104 = 105

Now, difference between the values obtained -

69 - 33 = 36

105 - 69 = 36

It is clearly seen that the difference is increasing by 36.

So, the next number in the series will be = (105 + 36) + 209

= 141 + 209

= 350

Hence, the next number in the series is 350

Like? Yes | No

Abhay 4 years ago

A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11.
Find a and b?

Reply Like? Yes | No

G.S.Kantharao 4 years ago

1+b=3+7=>b=9
1397-984=4a3=>a=1
Hence a=1,b=9

Like? Yes | No

Mohamed thalha 4 years ago

You+your = heart when o=4 then what is h+a+t+e

Reply Like? Yes | No

Dr.Dipin Singh 4 years ago

942+9426= 10368
H=1
a=3
t=8
e=0
h+a+t+e=12

Like? Yes (2) | No (1)

Uppala Redenkaiah 4 years ago

sorry sir plz explain briefly

Like? Yes | No

Paridhi Agarwal 4 years ago

901,785,677,325,101,? Can you please let me know the missing number in this series

Reply Like? Yes | No

Paridhi Agarwal 4 years ago

8,35,143,?,575 can you please let me know the missing number in series

Reply Like? Yes (1) | No

Jeevan 5 years ago

6 men and 5 women can earn rupees 2700 by doing a piece of work in 6 days. 4 men and 6 women can earn rupees 1520 in 4 days. In how many days can 8 men and 14 women can earn 9840 rupees

Reply Like? Yes | No

Ramesh Siripurapu 5 years ago

6x+5y=450
4x+6y=380
then x=50, y=30
by subsuiting and solving 12 days is ansewer

Like? Yes | No

aspak hussain 5 years ago

Tin+tin+tin=pipe+pipe where I=4

Reply Like? Yes (1) | No

srikanth desu 5 years ago

6, 7, 9, 11, 15, 15, 24, 19, ?

Reply Like? Yes (5) | No (1)

jeet 5 years ago

answer is 36.
9-6=3
15-9=6
24-15=9
36-24=12
so answer is 36

Like? Yes (1) | No (1)

Ramesh Siripurapu 5 years ago

answer is 36.
9-6=3
15-9=6
24-15=9
36-24=12
so answer is 36

Like? Yes | No

sagar prakash ojha 5 years ago

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Reply Like? Yes (1) | No

prashanth.k 5 years ago

.(dot) .5< 5.9

Like? Yes | No

Nikesh kumar 5 years ago

10,15,23,31,41,?

Reply Like? Yes (1) | No

chithambaram 5 years ago

4*2+2=10
4*4-1=15
4*6-1=23
4*8-1=31
4*10+1=41
so 4*12-1=47

Like? Yes | No (2)

Sonal Lavate 5 years ago

13 13 20 37.5 83 ?

Reply Like? Yes (1) | No

Geetanjali 5 years ago

13Ã— .5+ 6.5
13Ã—1+ 7
20Ã—1.5+7.5....

Like? Yes | No

Ramesh Siripurapu 5 years ago

13*.5+6.5=13
13*1+7=20

Like? Yes | No

DEEPAK Singla 5 years ago

P and Q entered into a partnership with investment 75000 and 125000 Q was sleeping partner At the ebd of year they share a profi of 240000 in 5:3 find the salary drawn by P

Reply Like? Yes | No

mahboob ali 5 years ago

(5/8)*240000= 150000.....
then salary is 150000-75000= 75000
yessss

Like? Yes | No

Gagandeep Singh 6 years ago

331, 217, 127, 109, ?

Reply Like? Yes | No

Gagandeep Singh 6 years ago

182, 110, 90, 42, ?

Reply Like? Yes | No

gambhir daimary 6 years ago

3,15,x,51,159,161

Reply Like? Yes (1) | No

priyanshu jakhmola 6 years ago

if 3 â€“ 2 = 2 16 â€“ 10 = 4 117 â€“ 99 = 9 then 1000 â€“ 265 = ?

Reply Like? Yes (3) | No

sanju 6 years ago

3-2=1*2=2
16-10=6-2=4
117-99=18/2=9
1000-265=735+2=737

Like? Yes | No

akhil dev 6 years ago

We have Rs100 ,We should buy 100 things at Rs.5,Rs.0.75 paise,Rs.0.25 paise,How can we buy ?

Reply Like? Yes (1) | No

SANDEEP KUMAR MAHATO 6 years ago

10 things of Rs 5 .... Rs 50
55 things of Rs 0.75 ... Rs. 41.25
35 things of Rs 0.25 .... Rs. 8.75

100 things for Rs 100.

Like? Yes (2) | No

gambhir daimary 6 years ago

if DDMUQZM is coded as CENTRAL than RBDJK can be coded as

Like? Yes | No (1)

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