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OpenStudy (anonymous):

Hello i am in the need of the following question's solution help me

OpenStudy (anonymous):

OpenStudy (experimentx):

The speed of bus travelling backward must be 3 times faster than travelling forward (relative speed) |dw:1339086940040:dw| or 3x = 20 + x => x = 10

OpenStudy (experimentx):

So we have the bus is travelling at 30km/hr

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