Question

hello guys


Mary cycles 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 ?

plz give the answer with full explanation.....

고 마 워, 안 녕 ​

Answer 1

Step-by-step explanation:

Speed of the cycle = 6 km / hr  Distance travelled to reach her Aunt’s house = 12 km  ∴ Time requried = (Distance travelled)/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  ∴ 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.Read more on Sarthaks.com - https://www.sarthaks.com/861196/mary-cycles-per-hour-how-long-will-she-take-reach-her-aunts-house-which-away-she-cycles-speed

Answer 2

Step-by-step explanation:

hope it helps you.｡◕‿◕｡