Ritesh and Anubhav are neighbours and study in 9th standard in a Public School in Delhi. They spend much of their quality time together at play grounds, library and their homes. Once, Anubhav measured the time and it took 20 minutes for them to walk from their house to the school. If their average walking speed in 6 km/h. Estimate the distance of the school from their house.

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Solution

Step 1: Given data:
The average speed is 6 km/h.
Time taken is 20 minutes
Step 2: Average speed:
$A v e r a g e s p e e d = \frac{T o t a l d i s \tan c e c o v e r e d}{T o t a l t i m e t a k e n} T o t a l d i s \tan c e c o v e r e d = A v e r a g e s p e e d \times T o t a l t i m e t a k e n$
Average speed = $6 k m / h r$
Time taken = $20 m i n = \frac{20}{60} h r$
Step 3: Finding total distance covered:
$T o t a l d i s \tan c e c o v e r e d = A v e r a g e s p e e d \times T o t a l t i m e t a k e n = 6 \times \frac{20}{60} = 2 k m$
Hence, the distance between their house and school is 2 km.

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