Question : If A : B is 7 : 4 and A – B = 9, then what is the value of A + B?
Option 1: 21
Option 2: 23
Option 3: 40
Option 4: 33
Answer (1)
27th Jan, 2024
Correct Answer: 33
Solution :
A : B = 7: 4
Let A = 7k and B = 4k
Given, A – B = 9
⇒ 7k – 4k = 9
$\therefore$ k = 3
So, A = 7 × 3 = 21, B = 4 × 3 = 12
⇒ A + B = 21 + 12 = 33
Hence, the correct answer is 33.
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