यदि ` 25 + 5 div 2 = 40 "और " 35 + 5 div 2 = 60," तो " 45 + 5 div 2 = ?`

Options

A. 90
B. 70
C. 60
D. 80

Answer

D

Explanation

`25 + 5 div 2 = 40`
` rArr (25 xx 2) -(5 xx 2) = 40`
` rArr 50 - 10 = 40`
` 35 + 5 div 2 = 60`
` rArr (35 xx 2) -(5 xx 2) = 60`
` rArr 70 - 10 = 60`
` 45 + 5 div 2`
` rArr (45 xx 2) -(5 xx 2)`
` rArr 90 - 10 = 80`