Question

a train travelling in 65 km/hr leaves Bombay at 10 a.m., and another train travelling at 75km/hr in the same direction leaves bombay at 12 noon. how many km from bombay will they be together?

Answer 1

Answer:

975 km ?? Is the amswer correct?

Step-by-step explanation:

speed = distance / time

first train started at 10 am

secind train at. 12 am

for both trains to meet they should cover same distace= d1 = d2

s1 × t1 = s2 × t2

but t1 = t2 + 2 ( since first train started 2 hours earlier than second)

then, s1 × (t2 + 2) = s2 × t2

s1 = speed of first train= 65kmph

s2= 2nd trainspeed = 75kmph

then, 65 × (t2 +2) = 75 × t2

this gives t2 as 13hr

then distance covered by 2nd train in 13hrs is = 75×13 = 975km

hope this will help you