Cathy has $3600 more money than Bob. 60% of Bob’s money is equal to 15% of Cathy’s money.
How much money does Cathy has?
For some questions, to see the picture more clearly, its better to change the percentage to fraction.
60/100 of Bob’s money = 15/100 of Cathy
Then we make the numerator the same,
60/100 of Bob’s money = 60/400 of Cathy
Taking the denominator, we now know that Bob has 100 units while Cathy has 400 units.
Difference = 400 – 100 = 300 units
300 units --> $3600
100 units --> 3600 / 3 = $1200
400 units --> 1200 * 4 = $4800 (Cathy)
