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1. The addition of 10 digits is 462. The average of their first four digits is 52 and the average of last 5 digits is 38. What is the fifth digit?
- A. 64
- B. 64
- C. 64
- D. 64
Answer: Option A
Explanation:
Sum of 10 integer is 462. The average of first 4 number is 52 and the average of last 5 number is 38. What is the fifth number ?
Sum of first 4 number = 4 X 52 = 208
Sum of last 5 number = 5 X 38 = 190
So, sum of 9 number = (208 + 190) = 398
So, the 5th number = (462 - 398) = 64 (Ans:)
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