Question

Karthik walks at 5 km/hr and reaches his destination 8 min late. If he walks at 6 km/hr, he reaches his destination on time. What distance he will cover in given time ?
A) 10 kms
B) 8 kms
C) 6 kms
D) 4 kms

Answer 1

Hii dear here is your answer


option b is the correct answer
Hope it's help u

Answer 2

Answer:

option (D) is correct

Step-by-step explanation:

Concept:

$speed=\frac{distance}{time\: taken}$

Let x be the distance which have to be found.

Let t be the time required to reach his destination.

As per given data,

$\frac{x}{t+8}=\frac{5}{60} \\\\\frac{60x}{5} = t+8$

.........(1)

Also

$\frac{x}{t} =\frac{6}{60}\\\\\frac{60x}{6} = t$..........(2)

using (2) in (1)

$\frac{60x}{5}=\frac{60x}{6} +8 \\\\\frac{60x}{5}-\frac{60x}{6}=8 \\\\\\\frac{60(6x-5x)}{30}=8$

2x=8

x = 4 kms