Question

Two cylinders of same volume have their heights in the ratio 1:3. find the stone sadi (A) 31 (B) 2:1 (C) 5:2 (D) 2:15​

Answer 1

Step-by-step explanation:

Correct option is (A

3:1

Given that h1:h2=1:3

Volume of cylinder is =πr2h

We have, πr12h1=πr22h2

⇒r22r12=πh1πh2=h1h2=13

⇒r2r1=13

⇒r1:r2=3:1

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Answer 2

Answer:

volume of cylinder 1 = volume of cylinder 2

π (r1)² h1 = π r2² h2

r1² * h = r2² * 3 h

r1² / r2² = 1/3

option a