second is 217.
14. A man covers a distance of 25 km in an hour,
partly on foot at the rate of 4 km/hr and partly
on motorcycle at 32 km/hr. Find the distance
travelled on the motorcycle.
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Answer:
let he covered x km by motorcycle
he covered 25-x km on foot
time taken for journey on foot = (25-x)/4
time taken for journey by motorcycle = x/32
total time taken = 1 hour
(25-x)/4 + x/32 = 1
8*(25-x) + x = 32
200 - 8x + x = 32
7x = 200 - 32
7x = 168
x = 168/7
x = 24 km ans
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