Question

If (a+b , a-b) = (4, 2), what is $\frac{a}{b}$ ?

• A. 1/3
• B. 2/3
• C. 3
• D. 3/2

Answer 1

The correct option is C

3

It is given that (a+b, a-b) = (4,2)
i.e. a+b = 4 (1)
And a-b = 2 (2)
From (1) and (2)
b = 1 and a = 3
Therefore $\frac{a}{b}$ = $\frac{3}{1}$ = 3