If the ratio of chairs to tables is 3:2 and there are 30 chairs, how many tables are there?
Show answer & explanation
Correct answer: A
Explanation
Chairs : Tables = 3 : 2
Chairs = 30
According to the formula:
Actual Quantity = Ratio × Common Multiplier
3x = 30
x = 10
Tables = 2x = 2 × 10 = 20