What is the percentage change in amount of water flowing through a val – McqOptions

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1.	What is the percentage change in amount of water flowing through a valve in one hour when originally the rate of flow from the valve was 10 m³/hr which was reduced to 5m³/hr?
A.	50%
B.	60%
C.	20%
D.	100%
Answer» B. 60%

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