Ian has thrice as many stamps as Pierre. Pierre has 8 more stamps than Harry. They have a total of 122 stamps.
- How many stamps does Ian have?
- How many stamps does Harry have?
(a)
Number of stamps that Pierre has = 1 u
Number of stamps that Harry has = 1 u - 8
Number of stamps that Ian has = 3 u
Total number of stamps
= 1 u + 1 u - 8 + 3 u
= 5 u - 8
5 u - 8 = 122
5 u = 122 + 8
5 u = 130
1 u = 130 ÷ 5 = 26
Number of stamps that Ian has
= 3 u
= 3 x 26
= 78
(b)
Number of stamps that Harry has
= 1 u - 8
= 26 - 8
= 18
Answer(s): (a) 78; (b) 18
