Xuan had a sum of money. She spent an equal amount of money daily. At the end of the eighth day, she was left with
310 of her money. At the end of the eleventh day, she was left with $39. How much money did she have at first?
Fraction of amount of money spent in 8 days
= 1 -
310 =
710 Fraction of amount of money spent in 1 day
=
710 ÷ 8
=
710 x
18 =
780 Fraction of amount of money spent in 11 days
= 11 x 780
=
7780 Fraction of amount left after 11 days
= 1 -
7780=
3803 u = 39
1 u = 39 ÷ 3 = 13
Total amount that Xuan had at first
= 80 u
= 80 x 13
= $1040
Answer(s) $1040