Harry bought 3 non-fiction books. The original price of each non-fiction book was $24. He was given 5% discount on the first non-fiction book and 25% 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 24
=
95100 x 24
= $22.80
Number of the rest of the non-fiction books that enjoyed 25% discount
= 3 - 1
= 2
Cost of each of the rest of the 2 non-fiction books after 25% discount in percent
= 100% - 25%
= 75%
Cost of each of the rest of the 2 non-fiction books
= 75% x 24
=
75100 x 24
= $18
Cost of the rest of the 2 non-fiction books that enjoyed 25% discount
= 2 x 18
= $36
Total cost for the 3 non-fiction books
= 22.80 + 36
= $58.80
Answer(s): $58.80