PSLE At a sale, Vincent bought 5 bowls of the same kind. His friend bought 3 such bowls. She also bought 3 cups at $5.80 each. Altogether, she spent $3.20 more than Vincent. What was the total amount of money Vincent and his friend spent?
|
Vincent |
His friend |
Items bought
|
5 bowls
|
3 bowls + 3 cups = 3 bowls + 17.40 |
Comparing the amounts paid |
|
$3.20 more |
Amount that his friend spent on 3 cups
= 3 x 5.80
= $17.40
Let the cost of 1 bowl be 1 B.
If Vincent's friend spent $3.20 less, each would pay the same amount.
5 B + 3.20 = 3 B + 17.40 - 3.20
5 B - 3 B = 17.40 - 3.20
2 B = 14.20
1 B = 14.20 ÷ 2 = 7.10
Total amount that Vincent and his friend spent
= 5 B + 3 B + 17.40
= 8 B + 17.40
= 8 x 7.10 + 17.40
= 56.80 + 17.40
= $74.20
Answer(s): $74.20