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neeraj kumar

· started a discussion

· 1 Months ago

error (Question: 126899.0 )

plz change the required ans to Km (not cm)

Question:

A train covers a distance between stations A and B in 45 minutes. If the speed is reduced by 5 km/hr, it will cover the same distance in 48 minutes. What is the distance between the two stations A and B (in km)? Also, find the speed of the train ?

Options:
A)

60 km, 80 km/hr.

B)

65 km, 70 km/hr. 

C)

60 km, 70 km/hr.

D)

Can’t be determined 

Solution:

Speed of train=  × 5 

= 80 kmph

and distance = (speed × Time) 

=  × 5 ×  = 60 km


2nd Method:-

t =  4560    hrs. =  34    hrs.

   

D = S × T

Distance remaining the same

S1 T1 = S2 T2

   

15S1=16S1 - 80

S1 = 80 km/hr.

D = S1T1 = 80 ×  34 = 60 km 

Knowledge Expert

· commented

· 1 Months ago

hi, its km....
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