self
Maths Puzzle
Sum of digits of a 5 digit number is 41. Find the probability that such a number is divisible by 11?
Read Solution (Total 0)
self Other Question
In a game there are 70 people in which 40 are boys and 30 are girls, out of which 10 people are selected at random. One from the total group, thus selected is selected as a leader at random. What is the probability that the person, chosen as the leader is a boy?
Four unit squares are chosen at random on a chessboard. What is the probability that three of them are of one colour and fourth is of opposite colour?