Latest L&T Aptitude Question SOLUTION: 20. A & B two places. C & D are two people. C started from A and D started from B. When they meet each other in the way C traveled 18 m more than D. Then C takes 13 an

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20. A & B two places. C & D are two people. C started from A and D started from B. When they meet each
other in the way C traveled 18 m more than D. Then C takes 13 and half a minute and D takes 24 minutes to
reach the other end. What was the distance between A & B.

Asked In L&T anvity (12 years ago)

Unsolved Read Solution (2)

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Read Solution (2) :

Phaneendra Sandeep  (12 years ago)

let d travelled x km, then c travelled 18+x km.
then c takes 13.5 min to travel 'x' distance and d takes 24 min to travel '18+x'
so their speeds are x/13.5 & (x+18)/24
Initially time taken by c & d to travel distances 18+x and x are same.
t=d/s => (18+x)/(x/13.5) = x/((x+18)/24)
=> (18+x)^2 = 1.777x^2
On solving the quadratic equation x=54 m
Distance between them is 2x+18= 2*54+18 = 126 m.

Is this solution Helpfull? Yes (65) | No (5)  

Krupesh Shah  (12 years ago)

let D travels x m,so C tarvels x+18 m.
So dist. b/w A & B is 2*x + 18 m
so,
(x + 18)*13.5 = x*24
x = 23.14m
So dist b/w A & B = 2*x + 18 = 64.28m

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