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

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


[Q]: Problem: a palindrome is a number that reads the same front - to - back as it does back - to - front ( e . g . 202 , 575 , 1991 , etc . ) p is the smallest integer greater than 500 that is both a prime and a palindrome . what is the sum of the digits of p ?
[A]: 4


[Q]: Problem: a train 250 m long , running with a speed of 50 km / hr will pass a tree in ?
[A]:
18 sec