144 coins are divided equally among some children. If there were 3 fewer children,
each child would have 16 coins. How many
children are there?​

Consider the number of children to be x.

So, 144 coins were divided amongst x children.

For x-3 children, each child would have 16 coins

So, (x-3)*16=144

Solving for x, x-3=144/16

or x-3=9

or x=9+3=12

Answer is 12