Question

Hannah can paint a room in 16 hours. Destiny can paint the same room in 12 hours. How long does it take for both Hannah and Destiny to paint the room it they are working together?

Answer 1

The time spent when working together is an illustration of fraction

They would spend 6.85 hours when working together

How to determine the time they work together?

The given parameters are:

Hannah = 16

Destiny = 12

Represent the time spent when working together with t.

So, we have:

1/t = 1/16 + 1/12

Add the fractions

1/t = 0.146

Take the reciprocal of both sides

t = 6.85

Hence, they would spend 6.85 hours when working together

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