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

[EX Q]: Problem: a circular ground whose diameter is 70 metres , has a 2.8 metre - broad garden around it . what is the area of the garden in square metres ?
[EX A]: 640.64

[EX Q]: Problem: find the greatest number that will divide 205 , 626 and 588 leaving 5 , 6 and 8 as remainders respectively
[EX A]: 2

[EX Q]: Problem: if 2994 a 14.5 = 179 , then 29.94 a 1.45 = ?
[EX A]:
17.