GeeksforGeeks

Given n people live in n houses and at some instant all of them disappear and reappear in some other house. What is the probability that no two meet each other.

There is a frog who can make jumps of length 3,5,7. There are stones in a river at distances a1, a2… an. The other end of the stream is n distance away. Can the frog cross the stream. What if the frog can make jumps backwards ?

How many times a day does a clock’s hands overlap?

You have 4218 no of balls. put 1 balls at top layer 3 at 2nd top layer then 6 and then 10 ... Continue in this way. How many layers are possible.?

25 persons are in a room. 15 of them play hockey, 17 of them play football and 10 of them play both hockey and football. Then the number of persons playing neither hockey nor football is:
(A) 2
(B) 17
(C) 13
(D) 3

plzzz provide me the title asap

A man bought two horses for Rs.924 each and sold one horse for 15% profit and the other for 15% loss.What is the net gain?

A man ate 100 bananas, each day eating 6more than the previous day. How many
bananas did he eat on the first day.

If we declare a pointer like char *p;
how much memory is allocated for pointer variable 'p'.

The egg vendor calls on his first customer and sells half his eggs and half an egg. To the second customer, he sells half of what he had left and half an egg and to the third customer he sells half of what he had then left and half an egg.
P.S. He didn't break any eggs. In the end three eggs were remaining.

How many did he start out with?

There is a 4 inch cube painted on all sides. This is cut down into of 1 inch cubes. What is the no of cubes which have no pointed sides?

I participated in a race.1/5th of those who are before me are equal to 5/6th of those behind me. What were the total number of contestants in the race?

Suppose a clock takes 7 seconds to strike 7. How long will it take to strike 10?

In a knockout tournament 51 teams participated. A team is out if the tournament if the team lost twice. How many matches to be held to choose the winner?

In one small town, there is a liar who lies on six days of the week. But on the seventh day he always tells the truth. He made the following statements on three successive days:

Day 1: 'I lie on Monday and Tuesday.'
Day 2: 'Today, it's Thursday, Saturday, or Sunday.'
Day 3: 'I lie on Wednesday and Friday.'

What day does the guy tell the truth?

Sam and Mala have a conversation. Sam says I am certainly not over 40. Mala says I am 38 and you are atleast 5 years older than me. Now, Sam says you are atleast 39. All the statements by the two are false. How old are they really?

There are two urns A and B and an equal number of red balls and blue balls.How do u place the balls in the urns such that the probability of picking up the red ball is greater?