Justin and Sarah share some buttons.
1112 of Justin's buttons is equal to
1115 of Sarah's buttons. Given that Justin has 24 buttons less than Sarah, how many buttons do they have altogether?
1112 of Justin's buttons = 1115 of Sarah's buttons
Number of Justin's buttons = 12 u
Number of Sarah's buttons = 15 u
Number of buttons that Justin has less than Sarah
= 15 u - 12 u
= 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Total number of buttons
= 12 u + 15 u
= 27 u
= 27 x 8
= 216
Answer(s): 216
