Three friends share a $90 bill in ratio 2:3:4. How much does each person pay?
Answer
$$20, $30, $40
How to solve it
1
Total parts: 2 + 3 + 4 = 9
2
Value per part: $90 ÷ 9 = $10
3
Person 1: 2 × $10 = $20
4
Person 2: 3 × $10 = $30
5
Person 3: 4 × $10 = $40
Hints
Add ratio parts together
Divide total by sum of parts
Multiply each ratio by the value per part