If the speed of a bus is increased by 5 km/ h then it takes 2 hours less than its normal time to complete 300 km.what is normal speed of bus
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Let the normal speed of bus is v.
so time taken to cover 300km=300/v .
when velocity is 5kmph time taken is (300/v) -2 hours.
it means 5= 300/{(300/v)-2}=300v/(300-2v).
by cross multiplication
1500-10v=300v
or 310v=1500
or v=1500/310=150/31=4.84kmph
so time taken to cover 300km=300/v .
when velocity is 5kmph time taken is (300/v) -2 hours.
it means 5= 300/{(300/v)-2}=300v/(300-2v).
by cross multiplication
1500-10v=300v
or 310v=1500
or v=1500/310=150/31=4.84kmph
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