Liam and Ahmad have a total of 65 marbles. If Liam gives Ahmad 31 marbles, Ahmad will have 4 times as many marbles as him. Find
(a) Liam's marbles
(b) Ahmad's marbles
|
Liam |
Ahmad |
Total |
Before |
1 u + 31 |
4 u - 31 |
65 |
Change |
- 31 |
+ 31 |
|
After |
1 u |
4 u |
5 u |
(a)
Total number of marbles
= 1 u + 4 u
= 5 u
5 u = 65
1 u = 65 ÷ 5 = 13
Number of marbles that Liam has
= 1 u + 31
= 13 + 31
= 44
(b)
Number of marbles that Ahmad has
= 65 - 44
= 21
Answer(s): (a) 44; (b) 21