PSLE At a sale, Asher bought 11 bowls of the same kind. His sister bought 7 such bowls. She also bought 3 glasses at $7.30 each. Altogether, she spent $9.70 less than Asher. What was the total amount of money Asher and his sister spent?
|
Asher |
His sister |
Items bought
|
11 bowls
|
7 bowls + 3 glasses = 7 bowls + 21.90 |
Comparing the amounts paid |
$9.70 more |
|
Amount that his sister spent on 3 glasses
= 3 x 7.30
= $21.90
Let the cost of 1 bowl be 1 B.
If Asher spent $9.70 less, each would pay the same amount.
11 B - 9.70 = 7 B + 21.90
11 B - 7 B = 21.90 + 9.70
11 B - 7 B = 31.60
4 B = 31.60
1 B = 31.60 ÷ 4 = 7.90
Total amount that Asher and his sister spent
= 11 B + 7 B + 21.90
= 18 B + 21.90
= 18 x 7.90 + 21.90
= 142.20 + 21.90
= $164.10
Answer(s): $164.10