A student was asked to find 4/5 of a number. But the student divided the number by 4/5, thus the student got 36 more than the correct answer. Find the number.  Choose the correct choice.
A) 60  B) 70  C) 80  D) 90  E) 100
Let the number be x.   (5/4) * x = (4/5)*x + 36   25x = 16x + 720   9x = 720   x = 80   The answer is 80.
<result>C</result>
A student was asked to find 4/5 of a number. But the student divided the number by 4/5, thus the student got 36 more than the correct answer. Find the number.