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

[EX Q]: Problem: if a * b * c = ( √ ( a + 2 ) ( b + 3 ) ) / ( c + 1 ) , find the value of 6 * 15 * 1 .
[EX A]: 2

[EX Q]: Problem: what is the sum of the numbers between 1 and 14 , inclusive ?
[EX A]: 105

[EX Q]: Problem: amit and ananthu can do a work in 10 days and 20 days respectively . amit started the work and left after 2 days . ananthu took over and completed the work . in how many days was the total work completed ?
[EX A]:
18 days