Question

Find the cost of digging a cuboidal pit 8 m long, 6 m broad and 3 m deep at the rate of ₹30 per m${}^3$.

• A. ₹ 4320
• B. ₹ 5320
• C. ₹ 6320
• D. ₹ 5520

Answer 1

The correct option is A ₹ 4320

The given cuboidal pit has its length (l) as 8 m, width (b) as 6 m, and depth (h) as 3 m.

$\text{Volume of the pit}=l\times b\times h$ $=8\times 6\times 3$
$=144m^3$

Cost of digging 1 m${}^3$ volume = ₹30

$\therefore$ Cost of digging $144m^3$ volume
= $(144\times 30)$
= ₹ 4320