The task is to generate the correct answer for a given math problem.

[EX Q]: Problem: the perimeter of a triangle is 36 cm and the inradius of the triangle is 2.5 cm . what is the area of the triangle
[EX A]: b ) 45

[EX Q]: Problem: how many multiples of 7 are there between 10 and 100 ( both are inclusive ) ?
[EX A]: 13

[EX Q]: Problem: the sum of first n consecutive odd integers is n ^ 2 . what is the sum of all odd integers between 9 and 39 inclusive .
[EX A]:
384