JIPMAT 2021 (QA) PYQs

If each side of a cube is decreased by $19 \%$, then the decrease in surface area is :

A solid brass sphere of radius 21 cm is converted into a right circular cylindrical rod of length 28 cm. The ratio of total surface areas of the rod to sphere is :

The length of canvas 1.1 m wide required to build a conical tent of height 14m and the floor area 346.5 $m^{2}$ is