Subtract (9 kg 400 g 120 mg) - (3 kg 500 g 480 m)

Option (A) is the answer.

Step-by-step explanation:

We have to subtract ( 9 kg 400 gm 120 mg ) - ( 3 kg 500 g 480 mg )

Now we will convert all the weights in the same unit first, then subtract them.

9 kg = 9 × 1000 gm = ( 9 × 1000 ) × 1000 mg = 9,000,000 mg

400 gm = (400) × 1000 mg = 400,000 mg

120 mg = 120 mg

Total weight = ( 9,000,000 + 400,000  + 120 ) mg = 9400120 mg

3 kg = 3 × 1000 gms = 3000 × 1000 mg = 3,000,000 mg

500 gm = 500 × 1000 mg = 500,000 mg

480 mg = 480 mg.

Total weight = 3500480 mg

Now we subtract ⇒ 9400120 - 3500480 = 5899640 mg

Now we will convert it into gm.

= 5899 gms 640 mg

Now we will convert gms to kg.

= 5 kg. 899 gms.

Finally the remainder is 5 kg 899 gms 640 mg.

Option (A) is the answer.

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