PSLE At a sale, Luis bought 8 glasses of the same kind. His aunt bought 4 such glasses. She also bought 2 bowls at $2.30 each. Altogether, she spent $30.60 less than Luis. What was the total amount of money Luis and his aunt spent?
|
Luis |
His aunt |
Items bought
|
8 glasses
|
4 glasses + 2 bowls = 4 glasses + 4.60 |
Comparing the amounts paid |
$30.60 more |
|
Amount that his aunt spent on 2 bowls
= 2 x 2.30
= $4.60
Let the cost of 1 glass be 1 G.
If Luis spent $30.60 less, each would pay the same amount.
8 G - 30.60 = 4 G + 4.60
8 G - 4 G = 4.60 + 30.60
8 G - 4 G = 35.20
4 G = 35.20
1 G = 35.20 ÷ 4 = 8.80
Total amount that Luis and his aunt spent
= 8 G + 4 G + 4.60
= 12 G + 4.60
= 12 x 8.80 + 4.60
= 105.60 + 4.60
= $110.20
Answer(s): $110.20