A person is climbing a rock at an altitude of 800 m. He goes up by 7 m – McqOptions

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1.	A person is climbing a rock at an altitude of 800 m. He goes up by 7 mph. and come down by 9 mph. what was his average speed?
A.	7.875 mph
B.	7.125 mph
C.	7mph
D.	7.5 mph
Answer» B. 7.125 mph

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