a car can a finish a certain journey in 10 hours at the speed of 48 km/hr .By how much should its speed be increased so that it may take only 6 hours to cover the same distance ?
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Answers
Answered by
1
hey
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distance= speed *time
distance = 48 km/ hr *10 hr
distance = 480 km
speed for travelling 480 km in 6 hours
we know that,
speed = distance/ time
speed = 480/ 6= 80 km /hr
increase in speed = 80 - 48 = 32 km / hr
hope helped
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Answered by
0
time = 10 hours
speed = 48
distance = ?
speed = time/ distance
48= 10 / D
D = 48 * 10 = 480
so, D = 480
we know that
S= D/T
S= 480/ 6= 80km/hr
so car need to move in 80km/hr to cover 480 km in 6hr
speed = 48
distance = ?
speed = time/ distance
48= 10 / D
D = 48 * 10 = 480
so, D = 480
we know that
S= D/T
S= 480/ 6= 80km/hr
so car need to move in 80km/hr to cover 480 km in 6hr
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