The graph shows the number of coins 3 pupils collected. Study the graph and answer the following.
- Who collected 20 coins? Give the answer in number. (Eg 1)
- Which 2 pupils collected a total of 52 coins? Give the answer in numbers. (Eg 1, 2)
- How many coins must Phyllis give to Erny so that both of them would have the same number of coins?
(a)
4 coins → 1 box
20 coins → 20 ÷ 4 = 5 boxes
(3) Erny has 5 boxes so she collected 20 coins.
(b)
Total number of boxes represented by 52 coins
= 52 ÷ 4
= 13
Number of boxes that Della and Erny had
= 8 + 5
= 13
2 pupils who collected a total of 52 coins are (1) Della and (3) Erny.
(c)
Difference in the number of boxes between Phyllis and Erny
= 6 - 5
= 1
Number of coins that Phyllis must give to Erny
= 1 ÷ 2 x 4
= 2
Answer(s): (a) 3; (b) 1, 3; (c) 2