Given:
a.) The ratio of Alice's savings to Bernice's savings was 5 : 4 at first.
b.) After Alice had spent $20 and Bernice had received $10, both of them had the same amount of money.
Let,
x = the savings the had in $.
Alice's savings = 5x
Bernice Savings = 4x
After Alice had spent $20 and Bernice had received $10, the equation will be:
Let's now find x.
5x - 20 = 4x + 10
5x - 4x = 10 + 20
x = 30 = $30
Let's now determine how much money did Bernice have at first.
Bernice's money = 4x = 30(4) = $120
Therefore, Bernice's had $120 at first.