Two distinct numbers are selected at random from the first 20 natural numbers.
What is the probability that the product of these numbers will be a multiple of 10?
1) 28/95
2) 53/190
3) 11/38
4) 27/95
Easy one !
Let M and m be the largest and the smallest values of x , respectively, which satisfy :
4x(x-5)
Find M-m
Find the sum of all integer x , satisfying :
1+8x
A fruit seller bought a few kgs of apples. First day he sold them at 100% profit and at the end of the day, he was able to recover his cost price. Next day he sold them at 50% profit and by the end of the day his net profit became 30%. On the third day he sold the remaining apples at 25% profit. His net profit on the sale of the apples is
1) 50%
2) 57.5%
3) 62.5%
4) 67.5%
@Dazed-Confused 
not u.. 
A and B play a game. A and B alternately roll a pair of dice (A starts the game). The first person to throw a score more than what the other has scored in the previous throw is said to have won the game. What is the probability that B wins the game in the second throw?
575/1296
1/2
175/1296
In how many DIFFERENT ways can the letters of the word 'PHILAB' be rearranged?
tough one
In a number system 12, 20,24 are in an arithmetic progression. What is the base of the number system? :D
Four Friends A.B,C,D have to cross a river there is only one boat and one torch at a time only two person can travel in a boat and they cant travel without torch 
A takes 1 min to cross the river
B takes 2 min
C takes 5 min
D takes 10 min
When two person are travelling together max(A,B) has to be considered One friend drops another friend at other side of the river and comes back
Min time taken to cross the river by 4 frnds 😁
Posting this question 2nd time
100 beggers are sitting in front of a temple. 100 people come to the temple on a Thursday. While coming out of the temple, they give a one rupee coin to the beggers. First person to come out of the temple, gives coins to every begger. 2nd person gives coins to 2nd 4th 6th begger and so on.
Q1. Out of the 100 beggers, highest sum obtained by any begger ?
Q2. how many begger have the highest obtained sum ?
😃
I purchased a Ticket for the footbal match between Spain And Brazil in the world cup the number on the first ticket was a 5 digit perfect square such that the first and the last digit were same and the 2nd and 4th digit were same and 3rd digit was 3 then what was the ticket number ??? 😁
I know Sehwag will not like this, but...
Six letter words are formed using the letters of the word SEHWAG. How many of the words so formed have following conditions
1. E doesn't come on second position.
2. W doesn't come on 4th position.
3. G doesn't come on 6th position.
😃
A thief escapes from prison and runs with a speed of 40 m per minute. A police officer starts following the thief after 5 minutes with a speed of 50 m per minute. The officer has a dog that runs with a speed of 60 m per minute. The dog runs to the thief and comes back to the police to show him the direction. It keeps moving to and fro between them, till the police catches the thief. Find the distance travelled by the dog in the direction of the thief.
revision
if X>=0 then the min value of the expression (6+x)(8+x)/(x+2)
Among first 100 natural numbers how many numbers can be written as sum of two or more consecutive odd integers ?
A rogue spaceship escapes. 54 minutes later the police leave in a spaceship in hot pursuit. If the police spaceship travels 12% faster than the rogue spaceship along the same route, how many minutes will it take for the police to catch up with the rogues?
Timon arrived in a city and was looking for a place to stay. He met a landlady who offered to rent her apartment at a reasonable price but wanted him to pay the rent on a daily basis. Timon had a silver bar of 31 inches, and an inch of silver bar was exactly equal to a day's rent. He agreed to pay an inch of the silver bar towards the daily rent. Timon wanted to make minimum number of pieces of silver bar but did not want to pay any advance rent. HOW MANY PIECES DID HE MAKE?
Consider S=(1,2,3,....,1000)
How many A.P. can be formed from S s.t. first and last terms are 1,1000 respectively and having atleast 3 elements?
Three person A,B and C are to speak at a function with 5 others if they all speak in randomorder the probability that A speaks before B and B speaks before C is ??? 😁
A basket contains 20 Apples and 10 oranges out of which 5 apples and 3 oranges are defective . If a person takes out 2 at a random what is probability that either both are apples or both are good
Instead of a meter scale, a cloth merchant uses a 120 cm scale while buying but uses an 80 cm scale while selling the same cloth. if he offers a discount of 20% on cash payment, what is his overall profit if he professes to sell at the same price?
a)20%
b)25%
c)40%
d)15%