Two numbers are respectively 20% less and 30% more than a third number. What is the ratio of the two numbers?
Show answer & explanation
Correct answer: A
Explanation
First number = 20% less than the third number
Second number = 30% more than the third number
Let the third number = 100
First number = 100 − 20% of 100 = 80
Second number = 100 + 30% of 100 = 130
Ratio = 80 : 130 = 8 : 13