Problema Solution
Sam went shopping at a department store. He spent 1/5 of his money on a sofa set and $800 on a washing machine. Later, he spent 1/8 of his remaining amount on dining table. If the amount of money left was
$100 more than half of the amount he had at first, how much did Sam have
at first?
Answer provided by our tutors
let he has money=$x
he spent on sofa set=$(1/5)x
he spent on washing machine=$800
he spent on dinning table=$(1/8)(x-((1/5)x+800))
he left=x/2+100
(1/5)x+800+(1/8)(x-((1/5)x+800))=x/2+100
(8/40)x=600
x=$3000