instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: dhoni bought 5 toys with the average cost of $ 10 . if david also buys the sixth toy with the price of $ 16 , what is the average ( arithmetic mean ) price of those 6 toys ?
answer:
$ 1

question:
Problem: positive integer y is 50 percent of 25 percent of positive integer x , and y percent of x equals 100 . what is the value of y ?
answer:
125

question:
Problem: if n is an integer and 101 n ^ 2 is less than or equal to 6400 , what is the greatest possible value of n ?
answer:
7