instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a student chose a number , multiplied it by 2 , then subtracted 138 from the result and got 102 . what was the number he chose ?
answer:
120

question:
Problem: 60 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780 . the bigger part is :
answer:
45

question:
Problem: the average of 45 results is 25 and the average of other 25 results is 45 . what is the average of all the results ?
answer:
32