Chain Rule Practice Test 2 with solutions

Question : 24 of 40

Marks: +1, -0

A tape makes 80 rounds of the circumference of a pole whose radius is 18 cm. How many times can it go round a pole with the radius of 24 cm?

Solution:

Length of tape = 80 × 18 cm
Number of rounds on pole with radius 24 cm
=

{80×18}/{24}

= 60 times

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