Mary cycled at 6 km per hour. How long will she take to reach her Aunt's house which is 12 km away ? If she cycles
at a speed of 4 km/hr , how long would she take ?
Answers
Answer:
2hrs and 3hrs
Step-by-step explanation:
Time=Distance/speed
=12km/6km/hr
=2hrs
Time=Distance/Speed
If she has a speed of 4 km/hr=12km/4km/hr
=3hrs
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Answer:
Mary will require 2 hours if she is cycling at 6 km/hr and 3 hours if she is cycling at 4 km/hr to reach her Aunt’s house
Explanation:
Speed of the cycle = 6 km/hr
Distance travelled to reach her Aunt’s house = 12 km
Time = (Distance)/Speed
= 2 hours
Let the time required when the speed of the cycle is 4 k,/hr be x hours.
The speed of the cycle and the time required to the travel the same distance are in inverse proportion.
4 × x = 6 × 2
x = (6 x 2)/4 = 3 hours
Therefore, Mary will require 2 hours if she is cycling at 6 km/hr and 3 hours if she is cycling at 4 km/hr to reach her Aunt’s house.