समय और दूरी
Time and Distance
Time and Distance
Question 20 of 36
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Question 20
A motor car finishes a journey in 10 hours, the first half at 21 km/hr and the rest at 24 km/hr. Find the distance.
Explanation
औसत चाल = (2*21*24)/(21+24) = 1008/45। दूरी = (1008/45) * 10 = 224 km।
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