Two positive numbers A and B (A > B) are in the ratio 11 : 8. If the difference between 7 times of A and 4 times of B is 225, then what is the value of 2A + 3B?

If all the girls in school B and school C participated in the function, find the ratio between the number of boys in school B and school C who participated in the function.

Which of the following examples represents an inverse proportional relationship (reverse movement)?