Answers

2016-01-02T13:29:11+05:30
Let cylinder 1 be c1
and cylinder 2 be c2
let radius of c1 = 3x
radius of c2= 4x
let height of c1 = 6y
height of c2 = 5y
Now,C.S.A of c1/C.S.A of c2=
2πrh/2πrh=2*π*3x*6y/2*π*4x*5y=18/20=9/10
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