Barbara had a sum of money. She spent an equal amount of money daily. At the end of the eighth day, she was left with
710 of her money. At the end of the twelfth day, she was left with $77. How much money did she have at first?
Fraction of amount of money spent in 8 days
= 1 -
710 =
310 Fraction of amount of money spent in 1 day
=
310 ÷ 8
=
310 x
18 =
380 Fraction of amount of money spent in 12 days
= 12 x 380
=
920 Fraction of amount left after 12 days
= 1 -
920=
112011 u = 77
1 u = 77 ÷ 11 = 7
Total amount that Barbara had at first
= 20 u
= 20 x 7
= $140
Answer(s) $140