Question 26

The sum of 68 numbers is 3474. The average of first 22 numbers is 61 and that of last 19 numbers is 44. What will be the average of remaining numbers ?

Solution

Sum of first 22 numbers = 22 * 61 = 1342

Sum of last 19 numbers = 19 * 44 = 836

Numbers remaining = 68 - 22 - 19 = 27

=> Sum of remaining 19 numbers = 3474 - 1342 - 836 = 1296

$$\therefore$$ Required average = $$\frac{1296}{27}$$

= 48

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