Celia and Eliot have some pears. If Eliot gave Celia 21 pears, their pears would be in the ratio 3:1. If Celia gave Eliot 12 pears, their pears would be in the ratio 3:2. How many pears does Celia have than Eliot?
According to the problem we can know that:
We can define that: {Celia has x pears
{Eliot has y pears
So we get: { (x + 21)/y - 21 = 3/1 {
=> { { (x - 12)/y + 12 = 3/2 { So Celia has 144 - 76 = 68 pears
