If a man walks $17 k m$ in $5$ hours, how long(in hrs) would he take to walk $20.4 k m$ ?

6

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Solution

The correct option is B $6$
We have,

Time taken to walk $17 k m = 5 h r s .$

Time taken to walk $1 k m = \frac{5}{17} h r s .$

Time taken to walk $20.4 k m = \frac{5}{17} \times 20.4$

$= \frac{5}{17} \times \frac{204}{10}$

$= \frac{1}{2} \times \frac{204}{17}$

$= \frac{1}{2} \times 12$

$= 6 h r s .$
Hence, this is the answer.

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If a man walks 17 km in 5 hours, how long(in hrs) would he take to walk 20.4 km?

The correct option is B 6We have, Time taken to walk 17km=5hrs. Time taken to walk 1km=517hrs. Time taken to walk 20.4km=517×20.4 =517×20410 =12×20417 =12×12 =6hrs. Hence, this is the answer.

If a man walks $17 k m$ in $5$ hours, how long(in hrs) would he take to walk $20.4 k m$ ?