a car travels 30 km with uniform speed of 40 km/h and next 30 km with speed 20km/h. find the average speed of car.
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average speed = total distance travelled ÷ total time taken
avg speed = 30 + 30 ÷ 40 + 20
60 ÷ 60
1 km/h
avg speed = 30 + 30 ÷ 40 + 20
60 ÷ 60
1 km/h
shreya1819:
But 40 and 20 are speeds not time unit
yo sorry !
i didn't noticed
Not a problem
Can we solve it as average speed = s1+s2/2
yes we can
ok so the ans should be 30
yes
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