Question

mr. lee drove from city p to city q which are 600km apart. during his return journey, mr. lee's average speed increased by 7km/h and the time taken was 15 minutes less. if he drove at an average speed of x km/h on his journey from city p to city q, formulate an equation in x and fint time
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Answer 1

Answer:

speed= distance/Time

distance=600 KM, Speed=7km/h, Time=?

so Time=distance/speed

then Time=600/7

Time=8.57 hrs