Of the 5 numbers, whose average is 100, the first is one-fourth of the sum of the last 4. The first number is?
Choose the correct choice from the following answers.
A) 83.3
B) 80
C) 78.63
D) 56.98
E) 67.85
Let the first number be x   sum of the 5 numbers = x+5x = 6x   6x/5 = 100   x = 100*5/6 = 83.3   83.3nswer is 83.3
<result>A</result>
Of the 5 numbers, whose average is 100, the first is one-fourth of the sum of the last 4. The first number is?