Question

when a boy run 3 km to his foot and the foot mother and his father​

Answer 1

Answer:

Here, P = 9 km, Q = 25 km, R = 30 km

x = 3 km/h, y = 5 km/h and z = 10km/h

Therefore, Required average speed

P+Q+RPx+Qy+Rz

9+25+3093+255+3010

643+5+3=6411

5911km/h

Answer 2

Answer:

5911 km/ h

Explanation:

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