Seth bought 5 story books. The original price of each story book was $44. He was given 10% discount on the first story book and 25% discount on the rest of the story books. How much did he pay for the 5 story books altogether?
Cost of the first story book after 10% discount in percent
= 100% - 10%
= 90%

Cost of the first story book after discount
= 90% x 44
= ⁹⁰₁₀₀ x 44
= $39.60

Number of the rest of the story books that enjoyed 25% discount
= 5 - 1
= 4

Cost of each of the rest of the 4 story books after 25% discount in percent
= 100% - 25%
= 75%

Cost of each of the rest of the 4 story books
= 75% x 44
= ⁷⁵₁₀₀ x 44
= $33

Cost of the rest of the 4 story books that enjoyed 25% discount
= 4 x 33 
= $132

Total cost for the 5 story books
= 39.60 + 132
= $171.60

Answer(s): $171.60