1.

What is the final amount of water flowing through a valve in one hour when originally the rate of flow from the valve was 10m3/hr which was reduced by 80%?

A. 3m<sup>3</sup>/hr
B. 4m<sup>3</sup>/hr
C. 5m<sup>3</sup>/hr
D. 2m<sup>3</sup>/hr
Answer» E.


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