Question

17

A pipe can fill a tankin h hours. What part of the tank is
filled in x hours.

a) hx
b)h/x
c) x/h
d) h + x

​

Answer 1

c) x/h

Explanation:

The rate of filling is 1 tank per h hours, or 1/h tanks per hour. Then in x hours, the amount of filling will be ...

(x hours)(1/h tanks/hour) = x/h tanks

The part of the tank filled in x hours is x/h.