11. A train takes 50 minute for a journey if it runs
at 48 km/hr. The rate at which the train must
run to reduce the time to 40 minutes will be?
(A) 50 km/hr
(B) 55 km/hr
(C) 60 km/hr
(D) 57 km/hr
Answers
Answered by
1
Answer:
c)60 km/hr
Step-by-step explanation:
in first way of the journey,
t = 50 min = 5/6 hr
s = 48 km/hr
distance = 48*5/6 = 40 km
second way of the journey
t = 40 min = 4/6 hr
s = ?
distance = 40 km
s=d/t
s= 40km*6/4
s= 60 km/hr
Answered by
2
Answer:
C. 60 km/hr
Step-by-step explanation:
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