a) 112 Km
b) 104 km
c) 89 km
d) 118 km
Answer: b
Explanation: For every 15 minutes he takes a rest of 2 minutes.
Hence, for 90 minutes of drive he would require 12 minutes of rest.
He will be traveling for 90 – 12 = 78 minutes.
In 60 minutes he covers 80 Km.
In 1 minute he would cover $$\frac{{80}}{{60}}$$ Km.
In 78 minutes he would cover $$\frac{{80}}{{60}} \times 78$$ = 104 Km.
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