Problema Solution
Judy spent $40 of her pocket money and saved the rest. If she increased her spending by 10%, her savings would decrease by 20%.How much was her pocket money?
Answer provided by our tutors
udy spent $40 of her pocket money and saved the rest. If she increased her spending by 10%, her savings would decrease by 20%.How much was her pocket money?
Solution:
The money in her pocket is x
So
0.8(x-40) = x-40*1.1
So
x=60
The money in her pocket is $60