If 4% of (A + B) is equal to 28% of (A – B), then find A : B.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 4 : 3.
4% of (A + B) = 28% of (A – B)
⇒ (A + B) = 7(A - B)
⇒ A + B = 7A - 7B
⇒ 6A = 8B
⇒ A : B = 8 : 6 = 4 : 3