Question

a bycicle tire completes 9/10 of a revolution every 1/3 of a second. how many revolutions will the tire complete every minute?​

Answer 1

162 RPM

Explanation:

Start by multiplying 9⁄10 by the Multiplicative Inverse of ⅓, which is 3:

9⁄10 ÷ ⅓ → 9⁄10 × 3 = 2 7⁄10

After this, multiply the result by sixty seconds, since there are sixty seconds in one minute:

60 × 2 7⁄10 = 162

So, it will make 162 RPM.

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