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Arithmetic Ability
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Q.
The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers :
A.
4
B.
8
C.
12
D.
16
View Answer
Correct choice: B
Explanation:
Let the numbers be x, x + 2, x + 4, x + 6 and x + 8. Then [x + (x + 2) + (x + 4) + (x + 6) + (x + 8) ] / 5 = 61. or 5x + 20 = 305 or x = 57. So, required difference = (57 + 8) - 57 = 8
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