Question

a car moves with a speed of 60 kilometre per hour in 15 minutes and then moves 45 kilometre per hour in 15 minutes find the distance of the car​

Answer 1

Answer:

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Explanation:

Solution:

(ii) 25 km

Speed (s1) = 40km/h

Time (t1) = 15 mins = (15/60) hr

Distance d1 = (s1 × t1) = 40 × (15/60) = 10 km

Speed (s2) = 60 km/h

Time (t2) = 15 min = (15/60) hour

Distance (d2) = (s2 × t2) = 60 × (15/60) = 15 km

Total distance (d) = (d1 + d2) = 10 km + 15 km = 25 km

Answer 2

v¹ =60km/h

t¹=15min=1/4h

d¹=60*1/4=15km

v²=45km/h

t²=15min=1/4h

d²=45*1/4=11.25km

net distance=15+11.25=26.25km