Question

A gold brick weighing 3kg was melted. It lost 150g of weight during melting how much gold was left in the brick

Answer 1

Answer:

Total weight of gold brick =3 kgs

1 kgs =1000 g

3*1000 =3000g

If in melting process 150 g is lost then

Total weight - lost weight

3000g - 150 g

= 2850 g

If in kgs

Then =2850/1000

=2.85 kgs is left weight of gold brick