The graph shows the number of marbles 3 students collected. Study the graph and answer the following.
- Who collected 56 marbles? Give the answer in number. (Eg 1)
- Which 2 students collected a total of 104 marbles? Give the answer in numbers. (Eg 1, 2)
- How many marbles must Jem give to Riley so that both of them would have the same number of marbles?
(a)
8 marbles → 1 triangle
56 marbles → 56 ÷ 8 = 7 triangles
(2) Ginny has 7 triangles so she collected 56 marbles.
(b)
Total number of triangles represented by 104 marbles
= 104 ÷ 8
= 13
Number of triangles that Ginny and Riley had
= 7 + 6
= 13
2 students who collected a total of 104 marbles are (2) Ginny and (3) Riley.
(c)
Difference in the number of triangles that Jem and Riley had
= 8 - 6
= 2
Number of marbles that Jem must give to Riley
= 2 ÷ 2 x 8
= 8
Answer(s): (a) 2; (b) 2, 3; (c) 8