A car moves with a speed of 60 km/h for 20 minutes and then moves with a speed of 30 km/h for the next 20 minutes, find the total distance covered by the car.
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answer: 30 km
Step-by-step explanation:
S1=60kmph
T1=20 min
= 20/60 hr
=1/3 hr
D1=?
Speed=distance/ time
Distance=speed×time
Distance =60km/h × 1/3hr
D1 = 20 km
S2=30kmph
T2=20 min
=1/3 hr
D2=?
D2=30km/h × 1/3 hr
D2=10km
total distance covered by car = D1+D2
=20km+10km
=30km
.
. . total distance covered by car =30 km
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