Question

Evaluate $78-[5+3of(25-2\times 10\left)\right]$.

• A. $45$
• B. $-45$
• C. $-58$
• D. $58$

Answer 1

The correct option is D

$58$

$78-[5+3of(25-2\times 10\left)\right]$

(Simplifying using $BODMAS$ rule)

$=78-[5+3of(25-20\left)\right]$

$=78-[5+3of5]$

$=78-[5+3\times 5]$

$=78-[5+15]$

$=78-20$

$=58$