Two points A and B are 500 km apart on a straight
road. Two motorcycles start at the same time from
A and B towards each other. The speed of one
motorcycle is 8 km/h more than the other. If after
4 hours, the distance between them is 36 km, find
their respective speeds.
Answers
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Answer:
8km and 10km
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Question
Two points A and B are 500 km apart on a straightroad. Two motorcycles start at the same time fromA and B towards each other. The speed of one motorcycle is 8 km/h more than the other. If after 4 hours, the distance between them is 36 km, find their respective speeds.
Answer
= let the speed of one motorcycle
= is = x
= speed of other motorcycle = ( x+8 )
= In 4 hours motorcycle
= 4x and 4(x+8)
= 4x+4x(x+8)+36= 500
= 4x+4x+32+36= 500
= 8x+32+36=500
= 8x= 432
= x = 421/8
= x= 54
= Speed of one motorcycle
= x=53 km/h
= Speed of other motorcycle
= (x+8)
= (54+8)
= 62 km/h
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