PSLE At a sale, Ken bought 9 bowls of the same kind. His aunt bought 5 such bowls. She also bought 3 cups at $2.70 each. Altogether, she spent $13.10 less than Ken. What was the total amount of money Ken and his aunt spent?
|
Ken |
His aunt |
Items bought
|
9 bowls
|
5 bowls + 3 cups = 5 bowls + 8.10 |
Comparing the amounts paid |
$13.10 more |
|
Amount that his aunt spent on 3 cups
= 3 x 2.70
= $8.10
Let the cost of 1 bowl be 1 B.
If Ken spent $13.10 less, each would pay the same amount.
9 B - 13.10 = 5 B + 8.10
9 B - 5 B = 8.10 + 13.10
9 B - 5 B = 21.20
4 B = 21.20
1 B = 21.20 ÷ 4 = 5.30
Total amount that Ken and his aunt spent
= 9 B + 5 B + 8.10
= 14 B + 8.10
= 14 x 5.30 + 8.10
= 74.20 + 8.10
= $82.30
Answer(s): $82.30