Caleb and Rebecca had a total of 180 buttons. Rebecca had 3 times as many buttons as Caleb.
- How many buttons did Caleb have?
- How many buttons did Rebecca have?
(a)
Number of buttons that Caleb had = 1 u
Number of buttons that Rebecca had = 3 u
Total number of buttons
= 3 u + 1 u
= 4 u
4 u = 180
1 u = 180 ÷ 4 = 45
Number of buttons that Caleb had
= 1 u
= 45
(b)
Number of buttons that Rebecca had
= 3 u
= 3 x 45
= 135
Answer(s): (a) 45; (b) 135