Math, asked by annieforu, 7 months ago

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 learnwithjm
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 saksham200663
2

Answer:

C. 60 km/hr

Step-by-step explanation:

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