A box of medicine tablets contains $2,50,000$ tablets each weighing $20 mg$. What is the weight of all the tablets in the box in grams and in kilograms? 

 A student multiplied $8245$ by $35$ instead of $32$. By how much was his answer greater than the correct answer?

$2 m 20 cm$ of cloth is needed for one shirt. What length of cloth will be required for $16$ such shirts?

One copy of newspaper has $14$ pages. Everyday $12928$ copies are printed. How many total pages are printed everyday?

In one state, the number of TV sets sold in the year $2009-10$ was $8,47,200$. In the year $2010-11$, the number of TV sets sold was $9,10,345$. In which year more TV sets were sold and how many more? 

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?

Round off the following number to the nearest tens:

Round off the following number to the nearest tens: