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If (a2 - b2) ÷ (a + b) = 25, then (a - b) = ?

A. 30

B. 25

C. 125

D. 150

Answer: Option B

Solution(By Examveda Team)

We know (a2 - b2) = (a - b) (a + b)
So, (a2 - b2) ÷ (a + b) = 25
⇒ $$\frac{(a - b) (a + b)}{a + b}$$   = 25
⇒ (a - b) = 25

This Question Belongs to Arithmetic Ability >> Number System

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