Correct Answer - Option 2 : 100%
Given:
If 20% of A is added to 20% of B, the answer is 40% of B.
Concept Used:
x% of y = (x/100) × y
y% of x = (y/100) × x
Calculation:
According to the question, we have
(20/100)A + (20/100)B = (40/100)B
⇒ (20/100)A = (40/100)B - (20/100)B
⇒ 2A = 2B⇒ A = B
⇒ 100% of A = 100% of B
∴ The 100% of A is equal to 100% of B.
