The table shows the list of items in a P.E storeroom. One of the numbers was covered by ink.
49 of the total number of items in the P.E. store room are tennis balls. How many tennis balls are there?
Type of item |
Number of items |
Golf balls |
31 |
Ping pong balls |
39 |
Tennis balls |
♦ |
Fraction of the items that are golf balls and ping pong balls
= 1 -
49 =
59Total number of items = 9 u
Number of golf balls and ping pong balls = 5 u
5 u = 39 + 31 = 70
1 u = 70 ÷ 5 = 14
Number of tennis balls
= 4 u
= 4 x 14
= 56
Answer(s): 56