PSLE At a sale, Vincent bought 9 wine glasses of the same kind. His cousin bought 7 such wine glasses. She also bought 5 bowls at $2.30 each. Altogether, she spent $1.30 more than Vincent. What was the total amount of money Vincent and his cousin spent?
|
Vincent |
His cousin |
Items bought
|
9 wine glasses
|
7 wine glasses + 5 bowls = 7 wine glasses + 11.50 |
Comparing the amounts paid |
|
$1.30 more |
Amount that his cousin spent on 5 bowls
= 5 x 2.30
= $11.50
Let the cost of 1 wine glass be 1 W.
If Vincent's cousin spent $1.30 less, each would pay the same amount.
9 W + 1.30 = 7 W + 11.50 - 1.30
9 W - 7 W = 11.50 - 1.30
2 W = 10.20
1 W = 10.20 ÷ 2 = 5.10
Total amount that Vincent and his cousin spent
= 9 W + 7 W + 11.50
= 16 W + 11.50
= 16 x 5.10 + 11.50
= 81.60 + 11.50
= $93.10
Answer(s): $93.10