Dear sir,

Would appreciate very much if someone can help me in the below question.

thanks

Kingman

The ratio of the number of red apples to the number of green apples in a box was 7:6. After twice as many red apples as green apples were sold, the ratio became 3: 4. There were 24 green apples in the box in the end. How many apples were in the box at first?