Question

A duck flew at 18 km per hour for first 3 hour, then at 15 km per hour for next 2 hours. With what average speed did the duck fly?​

Answer 1

Step-by-step explanation:

• 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

Answer 2

For first 3 hours, the duck flew

=> 18 × 3

=> 54 km

For next 2 hours , the duck flew

=> 15 × 2

=> 30 km

Total distance covered by flew = (54 + 30)km

= 84 km

Hence the duck flew =>

$\bold{\boxed{\blue{\large{84\:km}}}}$

$! \: hope \: it \: helps \: you \: !$