Question

A train passes two bridges of length 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is:
A.80m
B.90m
C.200m
D.150m

Answer 1

ĀNSWĒR ⏬

C.200m


✔Let length of the train be x m and speed of
the train is s kmph.

Speed, s = (x+800)/100 ..... (i)

Speed, s = (x+400)/60; ..... (ii)

Equating equation (i) and (ii), we get,

Or, (x+800)/100 = (x+400)/60;

Or, 5x+200 = 3x+2400;

Or, 2x = 400;


Or, x = 200 m.

THANKS ✌✌✌

Answer 2

A train passes two bridges of length 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is:
A.80m
B.90m
C.200m
D.150m


ĀNSWĒR ⏬⏬

C.200m


THANKS ❤

#Nishu Haryanvi ♠