Five mums each have four sons that each have three tennis balls. If a half of a half of the tennis balls are not green, how many of the tennis balls are green?
TOTAL BALLS 5 X 4 X 3 = 60 HALF OF HALF = 15 ARE NOT GREEN. GREEN 60 - 15 = 45 ARE GREEN.
For a tennis tournament, school ordered an equal number of yellow and white balls. The shop delivered 30 extra white balls, making the ratio of yellow balls to white balls 1/11 : 1/9. How many white tennis balls did the school originally order for?
You have 7 tennis balls that are all identical but one of them is slightly lighter than the others.
Using a balance scale and only two separate weightings, how can you find the light tennis ball?
You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?
A mixed doubles tennis game is to be played between two teams (each team consists of one male and one female). There are four married couples. No team is to consist of a husband and his wife.
What is the maximum number of games that can be played?
