Question

3. Two men start together to walk a certain
distance at 24 kmph and 18 kmph
respectively. The former arrives 20 min
before the latter What s the distance they
walk ?
24 kms
30 kms
36 kms
40 kms​

Answer 1

6 km

If the required distance be x km, then

\frac{x}{3} - \frac{x}{4} = \frac{1}{2}

=> \frac{4x-3x}{12} = \frac{1}{2}

=> \frac{x}{12} = \frac{1}{2}

=> x = 6 km

Hence option [A] is correct answer.