Gabriel bought 3 non-fiction books. The original price of each non-fiction book was $25. He was given 5% discount on the first non-fiction book and 20% discount on the rest of the non-fiction books. How much did he pay for the 3 non-fiction books altogether?
Cost of the first non-fiction book after 5% discount in percent
= 100% - 5%
= 95%
Cost of the first non-fiction book after discount
= 95% x 25
=
95100 x 25
= $23.75
Number of the rest of the non-fiction books that enjoyed 20% discount
= 3 - 1
= 2
Cost of each of the rest of the 2 non-fiction books after 20% discount in percent
= 100% - 20%
= 80%
Cost of each of the rest of the 2 non-fiction books
= 80% x 25
=
80100 x 25
= $20
Cost of the rest of the 2 non-fiction books that enjoyed 20% discount
= 2 x 20
= $40
Total cost for the 3 non-fiction books
= 23.75 + 40
= $63.75
Answer(s): $63.75