Question

4. If Ram walks from his house to school at
the rate 3 km/hr, he reaches 15 minute
late. If he walks at 4 km/hr, he reaches
15 minutes earlier than the scheduled
time. The distance between his house and
school is
(a) 3 km
(b) 6 km
Id) 20 km​

Answer 1

Answer:

3km is the correct answer

Step-by-step explanation:

hope it helps you out

Answer 2

Answer:

b) 6 km

Step-by-step explanation:

First time he taking total time T1 = ( t + 15 ) minutes

Second time he is taking total time T2 = ( t - 15 ) minutes

Difference between the time to reach the destination (T1-T2) = (t+15) - (t-15)

T1 - T2 = 30 minutes or 1/2 hour

Let the distance travelled by him is X km

X/3 - X/4 = 1/2

X = 6 km