Sun	Mon	Tue	Wed	Thu	Fri	Sat
23	24	25	26	27	28	1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30	31	1	2	3	4	5

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Multiple Choice Questions

The average of five positive numbers is 213 The average of the first two numbers is 233 middot 5 and...........

Quantitative Aptitude (CSC) Average

The average of five positive numbers is 213. The average of the first two numbers is 233·5 and the average of last two numbers is 271. What is the third number?

106

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Explanation:

The sum of the five numbers = 5 × 213 =1065
The sum of the first two numbers = 2 × 233.5 = 467
The sum of the last two numbers = 542
Then the sum of the four numbers = 467 + 542 =1009
So, the third number will be = 1065 – 1009 = 56

Hence, option 2 is the correct answer.

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