Tommy has five times as many buttons as Simon. Simon has 6 more buttons than Perry. They have a total of 134 buttons.
- How many buttons does Tommy have?
- How many buttons does Perry have?
(a)
Number of buttons that Simon has = 1 u
Number of buttons that Perry has = 1 u - 6
Number of buttons that Tommy has = 5 u
Total number of buttons
= 1 u + 1 u - 6 + 5 u
= 7 u - 6
7 u - 6 = 134
7 u = 134 + 6
7 u = 140
1 u = 140 ÷ 7 = 20
Number of buttons that Tommy has
= 5 u
= 5 x 20
= 100
(b)
Number of buttons that Perry has
= 1 u - 6
= 20 - 6
= 14
Answer(s): (a) 100; (b) 14
