Question

A covered wooden box has the inner measures as $115$cm, $75$cm, $35$cm and the thickness of wood is $2.5$cm. Then the volume of the wood is ___________.

• A. $80,000$cu.cm
• B. $82,125$cu.cm
• C. $84,000$cu.cm
• D. $85,000$cu.cm

Answer 1

The correct option is B $82,125$cu.cm

Inner volume of box is $=l\times b\times h=115\times 75\times 35=3,01,875c{m}^3$

Total volume of box $=(115+5)\times (75+5)\times (35+5)=120\times 80\times 40=3,84,000c{m}^3$

Volume of the wood =total volume $-$inner volume of box

$=3,84,000-3,01,875=82,125c{m}^3$