a girl while riding a bicycle moves with a speed of 10 kilometre per hour for 2 hours and with a speed of 15 km per hour for the next 3 hours find the total distance travelled by her and her average speed
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Answered by
7
10×2 for 2 hour =20
15×3 for 3 hour= 45
20+45=65km
for average speed
total distance ÷total time taken
65÷5=13km is average speed
"HOPE IT HELPS YOU"
15×3 for 3 hour= 45
20+45=65km
for average speed
total distance ÷total time taken
65÷5=13km is average speed
"HOPE IT HELPS YOU"
Answered by
2
distance covered in 1st 2 hours at speed of 10km/h=10×2=20 km and distance covered in next 3 hours at speed of 15 km/h= 15×3=45 km. hence total distance = 20+45=65km. Now average speed= 65 km by (3+2) h=65 by 5= 13km/h.
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