Question

A box contains 2,00,000 medicine tablets each weighing 20mg wht is the total weight of all these tablets in the box in grams and in kilorams

Answer 1

1mg =  1000gm&1kg = 1000gm
no. of tablets= 2,00,000weight of 1 tablet = 20 mg
total wt. of the tablets= no. of tablets * wt. of 1 tablet                                  = 2,00,000 * 20/1000 grams                                  =4000 grams             answer                                  = 4 kilograms             answer

Answer 2

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Box has 2,00,000 medicine table . 
weight of each tablet = 20 mg .
Total  weight of all tablets in mg = 2,00,000 * 20 
                                       = 40,00,000 mg 
We know that 1 g = 1000 mg .
then ,
40,00,000 mg = 4,000 g .
Now , 1 kg = 1000 g 
so,
4000 g = 4 kg .

Hence ,
 4 kg or 4000 g or 4000000 mg .

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