instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: the least number which should be added to 1789 so that the sum is exactly divisible by 5 , 6 , 4 and 3 is ?
answer:
11

question:
Problem: if a - b = 6 and a 2 + b 2 = 50 , find the value of ab .
answer:
a ) 7

question:
Problem: evaluate : 40 - 12 * 3 * 2 = ?
answer:
32