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Q.
Of the four numbers, whose average is 60, the first is one-fourth of the sum of the last three. The first number is :
A.
17
B.
29
C.
36
D.
48
View Answer
Correct choice: D
Explanation:
Let the first number be x, Then, sum of the four numbers = x + 4x = 5x. so, 5x/4 = 60 or x = (60 * 4) / 5 = 48.
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