9th Class
Mathematics
Surface Areas and Volumes
Question Bank
Surface Area and Volume
question_answer
From each of the four corners of a rectangular sheet of diamensions\[\mathbf{20cm}\times \mathbf{16cm}\], a square of side 3 cm is cut off and a box is made. The volume of the box is
A) 828 \[c{{m}^{3}}\]
B) 280 \[c{{m}^{3}}\]
C) 500 \[c{{m}^{3}}\]
D) 1000 \[c{{m}^{3}}\]
Correct Answer:
B
Solution :
(b): Length of box \[=20-2\times 3=14\] cm Width of box\[=16-2\times 3=10\] cm Height of box = 3 cm. \[\therefore \]Volume of box \[=\left( 14\times 10\times 2 \right)\] cu.cm. = 280 cu.cm.