Time, Speed & Distance
Aptitude

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Q.

$X$ and $Y$ start walking towards each other at 10 am at speeds of 3 km/hr and 4 km/hr respectively. They were initially 17.5 km apart. At what time do they meet?

 A.

2:30 pm

 B.

11 :30 pm

 C.

1:30 pm

 D.

12 :30 pm

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Solution:
Option(D) is correct

Let after $T$ hours they meet

Then, $3T+4T = 17.5$

$T = 2.5$

Time = 10:00 am + 2.5 hour = 12:30 pm


(2) Comment(s)


Nitin Singh
 ()

Simply we can solve these type of questions ..

Total distance/ total speed(x+y)

17.5/(3+4) = 2.5s


Nitin Singh
 ()

Sorry its 2.5 hrs instead of 2.5s