A car is moving with speed of 20 ms-1 . Its spe...

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4 + 1 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

A car is moving with speed of 20 ms-1 . Its speed in kmh-1 is____

72 kmh-1

100 kmh-1

36 kmh-1

50 kmh-1