Question

Mohit painted the outside of a box of length $2.5m$, breadth $2m$ and height $1m$. How much area did he cover, if he painted all except the bottom of the box?

• A. $20m^2$
• B. $16m^2$
• C. $54m^2$
• D. $14m^2$

Answer 1

Answer: (D)

$14m^2$

Area Mohit painted $=2(2.5\times 2+2\times 1+2.5\times 1)-(2.5\times 2)$

$=2(5+2+2.5)-\left(5\right)$

$=2\left(9.5\right)-5$

$=19-5$

$=14m^2$