* How far would the motor
boats go in three and a half
hours?
* How much time will they
take to go 85 km?
Answers
Answer:
Given
The speed of a motor boat is 20 km/hrs.
Find out
how far would the motor boat go in three and a half hours ?
how much time will they take to go 85 km?
Solution
★In first case
Speed of motor boat = 20km/hrs
Time taken = 3 ½ hrs = 7/2 hrs
Distance travelled = ?
→ Distance = speed × time
→ Distance = 20 × 7/2
→ Distance = 10 × 7
→ Distance = 70km
Hence, it will travel 70km in 3 ½hrs
___________________
★ In second case
Speed of motor boat = 20km/hrs
Distance travelled = 85km
Time taken = ?
→ Time = distance/speed
→ Time = 85/20
→ Time = 17/4
→ Time = 4 ¼ hrs
Hence, they will take 4 ¼ hrs to go 85km
____________________
Answer:
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