The table shows the list of items in a P.E storeroom. One of the numbers was covered by ink.
47 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 |
Ping pong balls |
42 |
Volleyballs |
21 |
Tennis balls |
♦ |
Fraction of the items that are ping pong balls and volleyballs
= 1 -
47 =
37Total number of items = 7 u
Number of ping pong balls and volleyballs = 3 u
3 u = 21 + 42 = 63
1 u = 63 ÷ 3 = 21
Number of tennis balls
= 4 u
= 4 x 21
= 84
Answer(s): 84