A man started on a walk of 12 km after walking half the distance at x – McqOptions

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1.	A man started on a walk of 12 km after walking half the distance at x km/h he decreased his speed by 1/2 km/h. He completed his walk in 10 minutes later than he would have done if he had not decreased his speed. Find the value of x.
A.	5
B.	4.5
C.	5.5
D.	6
Answer» C. 5.5

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