A duck flew at 18 km per hour for 3 hours, then at 15 km per hour for 2 hours. How far did the duck fly in all?
A69 km
B75 km
C81 km
D84 km
Ans 4:
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Rashmi Malik
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Class : Class 5
The solution for this question is Speed 1 is 18 km per hr Time 1 is 3 3 hr Therefore distance is speed multiplied by time18Ã3=54Distance 1 is 54 kmSpeed 2 is 15km per hr Time 2 is 2 hrDistance is speed multiplied by time Therefore15Ã2=30Distance 2 is 30 km To find total distance =distance 1 distance 2=total distance54km 30km =84km84 km is the total distance