A man completes a journey in 10 hours. He covers the first half at 21 km/h and the second half at 24 km/h. The total distance covered is

A220 km

B224 km ✓ Correct

C230 km

D234 km

Correct answer: (B) 224 km

Explanation

The total distance is 224 km.

Let each half be d km, so total = 2d.

Time = d/21 + d/24 = 10 hours.

Combine: (24d + 21d)/504 = 45d/504 = 10.

So d = 5040/45 = 112, and 2d = 224.

Thus the total distance is 224 km.

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