Purav covers $17.25$ km in $1.5$ hours on his bicycle. Find how many kilometres is covered in $1$ hour by Purav.

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Solution

Given, distance covered in $1.5$ hours $= 17.25$ km
Distance covered in $1$ hour $= 17.25 \div 1.5$
Now,
$17.25 \div 1.5 = \frac{17.25}{1.5} = \frac{172.5}{15} (∵ R e m o v i n g o n e d e c i m a l p o i n t) = \frac{1725}{10} \times \frac{1}{15} = \frac{1725}{15} \times \frac{1}{10} = 115 \times \frac{1}{10} (∵ 115 \times 15 = 1725) = \frac{115}{10} = 11.5$
$\Rightarrow 17.25 \div 1.5 = 11.5$
Hence, Distance covered in 1 hour by Purav is $11.5$ km.

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