30 percent of a number exceeds 20 percent of the same number by 40. What is the value of the number?
Show answer & explanation
Correct answer: A
Explanation
Given:
30% of the number = 40 more than 20% of the number
According to the formula:
Percentage = (Percentage/100) × Number
Let the number be x.
30% of x = 20% of x + 40
(30/100)x = (20/100)x + 40
(30 − 20)/100 x = 40
(10/100)x = 40
x/10 = 40
x = 400