Of the four numbers, whose average is 75, the first is one-fourth of the sum of the last three. The first number is ?	Choose the correct answer:
A) 60
B) 29
C) 11
D) 48
E) 10
Explanation:   Let the first number be x,   Then, sum of the four numbers = x + 4x = 5x.   so, 5x/4 = 75 or x = (75 * 4) / 5= 
<gadget id="calculator">(75 * 4) / 5</gadget>
<output>60</output>
60   60nswer: 60
<result>A</result>
Of the four numbers, whose average is 75, the first is one-fourth of the sum of the last three. The first number is ?