A football team won 10 matches out of the total number of matches they played. If their win percentage was 40, then how many matches did they play in all?

What is the number of ways of choosing 4 cards from a pack of 52 playing cards.In how many of these cards are of the same colour?

In a primary school parents were asked about of the number of hours they spend per day in helping their children to do home work. There were 90 parents who helped for frac(1)(2) hour to 1frac(1)(2) hours. The distribution of parents according to the time for which, they said they helped is given in the adjoining figure, 20% helped for more than 1frac(1)(2) hours per day, 30% helped for frac(1)(2) hour to 1 hours, 50% did not help at all. Using this, answer the following : How many said that they didnot help?

In a primary school parents asked about of the number of hours they spend per day in helping their children to do home work. There were 90 parents who helped for frac(1)(2) hour to 1frac(1)(2) hours. The distribution of parents according to the time for which, they said they helped is given in the adjoining figure, 20% helped for the than 1frac(1)(2) hours per day, 30% helped for frac(1)(2) hour to 1 hours, 50% did not help at all. Using this, answer the following : How many said that they helped more than 1frac(1)(2) hours?

There are 60 students in a class. Out of them 25 students play foot ball and 20 students play cricket and 10 of them play both , how many of them play neither are.

What is the number of ways of choosing 4 cards from a pack of 52 playing cards.In how many of these 4 cards are face cards.

Lakshmi is a cashier in a bank. She has currency notes of denominations Rs 100, Rs 50 and Rs 10, respectively. The ratio of the number of these notes is 2:3:5 . The total cash with Lakshmi is Rs. 4,00,000. How many notes of each denomination does she have?

Indian cricket team consists of 6 bowlers and 8 batsmen from which playing eleven is to be selected including atleast 4 bowlers. In how many ways can this be done?

What is the number of ways of choosing 4 cards from a pack of 52 playing cards.In how many of these four cards are of the same set.