A person starts from his home and reaches his school, which is 120 m away in 1 minute. He
immediately tums back and walks towards his home at a speed of 1 m/s. If his average speedlĺ is
expressed as nx10 m/minute, calculate n.
Answers
Answered by
0
Answer:
BHAI Mujhe FOLLOW KARNA
Answered by
3
Answer:
n=8
Step-by-step explanation: distance from home to school=120
distance from school to home=120
total distance walked=240
Time required to reach school= 1 min
speed while walking back= 1m/s
time required to reach home= dist/speed = 120m/ 1m/s= 120m x s/m= 120s (meter in numerator nd meter in denominator cancel each other out)
120s=2 mins
average speed= total dist/total time = 120m +120m/1min +2 min=240m/3min=80m/minute
so nx10 m/minute=80m/minute= 8x10m/minute
therefore n=8
hope you understand
Similar questions