Rahim rode his motorbike for a distance of 30 km from his house to the general hospital of Muar .if he increased his average speed by 10 km/h ,the time he takes to complete his journey will be reduced by 30 minutes. calculate his initial average speed.

1

Jawapan

2016-10-14T16:30:08+08:00
50km/h....rase nye lh
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