SOLUTION: Distance covered from home to school at 3 km/hr and school to home at 4km/hr, time taken 21 minutes, find distance from home to school.
Algebra.Com
Question 996195: Distance covered from home to school at 3 km/hr and school to home at 4km/hr, time taken 21 minutes, find distance from home to school.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Distance covered from home to school at 3 km/hr and school to home at 4km/hr, time taken 21 minutes, find distance from home to school.
------------
Avg RT speed = 2*3*4/(3+4) = 24/7 km/hr
RT distance = (24/7)*(21/60) km
= 1.2 km
--> 0.6 km each way
RELATED QUESTIONS
Erin rides her bike from home to school in 15 minutes. If she increases her speed by 5... (answered by josmiceli)
A girl goes to her school from her home at 3 km/h and come back from her school at 2 km... (answered by Alan3354)
The distance from home to school is 36/5 km. distance covered by car is 1/5and 2/3 by... (answered by josmiceli)
Nancy jogs & walks to school each day. She averages 4km/h walking and 8km/h jogging the... (answered by stanbon)
mark cycle from home to school at the speed of 16km per hour.he cycles back on the same... (answered by ankor@dixie-net.com,Alan3354)
Alan cycles everyday from home to school and back. The school is 6km from his home. He... (answered by josmiceli)
A teacher lives at a distance of 2.6 km from her school.
(i) Calculate the time, in... (answered by stanbon)
A student drives from home to school at an average speed of 40 km/hr and returns home at... (answered by ankor@dixie-net.com)
You are driving home from school steadily at 65 mi/hr for 130 mi, it begins to rain and... (answered by rfer)