Please solve this question
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Answer:
speed = distance travelled/ time taken
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S=90km/hr....given
T=2hr.... given
D=?
By formula,.
T=D/S
2=D/90
D=180KM
if speed is 120km/hr
T=?
T=D/S
T=180/120
T=1.5hr
Car travel at speed of 50km/hr
T=?
T=D/S
T=180/50
T=3.6hr
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