PSLE At a sale, Jeremy bought 6 mugs of the same kind. His sister bought 3 such mugs. She also bought 3 bowls at $1.50 each. Altogether, she spent $24.60 less than Jeremy. What was the total amount of money Jeremy and his sister spent?
|
Jeremy |
His sister |
Items bought
|
6 mugs
|
3 mugs + 3 bowls = 3 mugs + 4.50 |
Comparing the amounts paid |
$24.60 more |
|
Amount that his sister spent on 3 bowls
= 3 x 1.50
= $4.50
Let the cost of 1 mug be 1 M.
If Jeremy spent $24.60 less, each would pay the same amount.
6 M - 24.60 = 3 M + 4.50
6 M - 3 M = 4.50 + 24.60
6 M - 3 M = 29.10
3 M = 29.10
1 M = 29.10 ÷ 3 = 9.70
Total amount that Jeremy and his sister spent
= 6 M + 3 M + 4.50
= 9 M + 4.50
= 9 x 9.70 + 4.50
= 87.30 + 4.50
= $91.80
Answer(s): $91.80