A student was asked to find 4/5 of a number. But the student divided the number by 4/5, thus the student got 18 more than the correct answer. Find the number. Choose the correct option.
A) 30 B) 35 C) 40 D) 45 E) 50
Let the number be x.   (5/4) * x = (4/5)*x + 18   25x = 16x + 360   9x = 360   x = 40   The answer is 40.
<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 18 more than the correct answer. Find the number.