P and Q take part in a 400 m race. P runs at 12 km/hr. P gives Q a start of 20 m and still beats him by 13 seconds. The speed of Q is (round up to two...

Question

P and Q take part in a 400 m race. P runs at 12 km/hr. P gives Q a start of 20 m and still beats him by 13 seconds. The speed of Q is (round up to two decimal places).

Options

A.

10.87 km/hr

B.

10.29 km/hr

C.

11.38 km/hr

D.

11.61 km/hr

speedtimedistanceracerelative speed

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