IB exams A rope can make 70 rounds of the circumference of a cylinde – InterviewSolution

1.	IB exams A rope can make 70 rounds of the circumference of a cylinder whose radius of the base is 14cm. how many times can it go round a cylinder having radius 20 cm?
Answer» of rope = 70 × 2πr = 70×2×π×14 = 140π×14if the cylinder had radius 20, LET the NUMBER of rounds = yy × 2πR = 140π × 14⇒ y = So it can go 49 TIMES round the cylinder.

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