Capgemini Company Numerical Ability Area and Volume

Determine the metal required to make a 21 m long pipe if its inner and outer diameter are 12 m and 10 m respectively.
a. 2904 m3 b. 2534 m3 c. 2843 m3 d. 2647 m3

Read Solution (Total 5)

volume of a hollow cylinder=pi*h*(R^2-r^2)
22/7*21m*(144-100)m^2
=66*44m3
=2904m3
9 years agoHelpfull: Yes(12) No(11)

Here Diameter is given instead of radius please crct that to get right answer
9 years agoHelpfull: Yes(12) No(0)
2904 will be the ans
9 years agoHelpfull: Yes(1) No(7)
volume of cyclinder=3.14*21*(6^2-5^2)=725.34
5 years agoHelpfull: Yes(0) No(0)
metal reqd.=pi*(R*R-r*r)*H
=2904
5 years agoHelpfull: Yes(0) No(0)

Capgemini Other Question

Two trains whose respective lengths are 240 m and 360 m cross each other in 30 seconds when they are moving in opposite directions and in 1 minute 40 seconds when they are moving in the same direction. What is the speed of the faster train (kmph)
a. 39.2 b. 36.6 c. 46.8 d. 33.33 e. 49.2 3 designers x,y and z can stitch 324 dresses in 6 weeks working simultaneously. During one shift, z stitches as many dresses more than y as y stitches more than x. Z’s work in 10 weeks in equivalent to x’s work in 14 weeks. How many dresses does x stitch per shift.
a. 21 b 15 c. 27 d. 18