Mohit travels $8 \mathrm{km} 425 \mathrm{m}$ towards north, $13 \mathrm{km} 210 \mathrm{m}$ towards south and $15 km 675 m$ towards west. Calculate the distance travelled by him. 

An engine pumps out $850 litres$ of water in one minute. How many hours will it take to pump out $13,77,000 litres$ of water?

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