1000+ L&T Infotech Aptitude Questions and Answers Pdf - 1

Question: 1

The volume of cuboid is twice that of a cube. If the dimensions of the cuboid are 9 cm, 8 cm and 6 cm, the total surface area of the cube is

(A) 72 cm²

(B) 216 cm²

(C) 432 cm²

(D) 632 cm²

Question: 2

A cube of edges 20 cm is completely immersed in a rectangular vessel containing water. If the dimensions of the base of the vessel are 20 cm by 40 cm, the rise in water level will be

(A) 2 cm

(B) 6 cm

(C) 8 cm

(D) 10 cm

Question: 3

What part of a ditch, 48 metres long, 16.5 metres broad and 4 metres deep can be filled by the earth got by digging a cylindrical tunnel of diameter 4 metres and length 56 metres?

(A) $${1}/{9}$$

(B) $${2}/{9}$$

(C) $${7}/{9}$$

(D) $${8}/{9}$$

Question: 4

If the volume and surface area of a sphere are numerically the same, then its radius is

(A) 1 units

(B) 2 units

(C) 3 units

(D) 4 units

Question: 5

Water is flowing at the rate of 5 km/hr through a cylindrical pipe of diameter 14 cm into a rectangular tank which is 50 m long and 44 m wide. Determine the time in which the level of water in the tank will rise by 7 cm.

(A) 1 hour

(B) 2 hours

(C) 3 hours

(D) 4 hours