1.

 A scooter before overhauling requires 2/3 h service time every 45 days,while after overhauling it requires 2/3 h service time every 60 days. what fraction of pre-overhauling service time is saved in t

A. 1/2
B. 1/4
C. 1/6
D. 1/8
Answer» C. 1/6


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