Harry has four times as many buttons as Vaidev. Vaidev has 5 more buttons than Ben. They have a total of 103 buttons.
- How many buttons does Harry have?
- How many buttons does Ben have?
(a)
Number of buttons that Vaidev has = 1 u
Number of buttons that Ben has = 1 u - 5
Number of buttons that Harry has = 4 u
Total number of buttons
= 1 u + 1 u - 5 + 4 u
= 6 u - 5
6 u - 5 = 103
6 u = 103 + 5
6 u = 108
1 u = 108 ÷ 6 = 18
Number of buttons that Harry has
= 4 u
= 4 x 18
= 72
(b)
Number of buttons that Ben has
= 1 u - 5
= 18 - 5
= 13
Answer(s): (a) 72; (b) 13
