Practice D1 D2 D3 D4 D5 D6 D7 D8 D9

Practice D9

A sum of $50 000 was donated to a school. $30 000 was used for school building and $20 000 for student welfare.

a) 30% of school building fund was used for new computer lab.
How much money was used for building computer lab?

b) 40% of the student welfare was used for international travel.
How much money was that?