SSC CGL 10 Jun 2019 Shift 1 Paper

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Question : 63 of 100

Marks: +1, -0

The curved surface area and the volume of a cylinder are 264 cm

^{2}

and 924 cm

^{3}

, respectively. What is the ratio of its radius to height? (Take

\π=22/7

)

4 : 3
5 : 4
7 : 6
3 : 2

Solution:

C.S.A

=2 \π\ {rh}=264

\ {\Vol}=\π \ {r}^{2} \ {h}=924

\ {\ {\VOL}}/{\ {\CSA}}=\ {\ {r}}/{2}=\ {924}/{264}

\ {r}=7

\ {\Now}, 2 \×\ {22}/{7} \×7 \× {h}=267

\ {h}=6

{\So}, \ {r}: \ {h}=7: 6

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