The difference between 20% of a number and 10% of the same number is 120. What is the number?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 1200.
Let the number = x
20% of x = 0.20x
10% of x = 0.10x
Difference = 0.20x – 0.10x = 0.10x = 120
⇒ x = 120/0.10 = 1200