Question

If one gold bangle is made from 12 grams 250 milligrams of gold, how much gold will be needed to make 8 such bangles? (1000 mg = 1 g).

Answer 1

gram	milligram
1 2   ×	2 5 0          8
9 6	2 0 0 0
96 + 2	0 0 0
9 8	0 0 0

∴ 98 grams of gold needed.