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Question

If the average of 64, 69, 72, 75, x lies between 62 and 76 (excluding 62 and 76), then what is the number of possible integer values of x?

This question was previously asked in
CDS 2 2025 Maths Question Paper (14-Sep-2025)
The correct answer is

69

By solving the inequality for the average of these numbers, we find that the number of possible integer values of x is 70. Hence, the correct answer is (c) 70.

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Similar Questions

  1. All possible groups of 3 distinct numbers from among A, B, C, D and E are formed. If the aggregate of sums of numbers of each group is 120, then what is the arithmetic mean of A, B, C, D and E ?

Important Questions from Average

  1. The average height of 20 students of class 8 is 152 cm and the average height of 15 students of class 9 is 168 cm. What is the average height (to the nearest cm) of the students of both classes?

  2. The average of 4, 6, 8, 12 and x is 7 and the average of x, 9, 13, 15 and y is 9. What is the value of 2x - 3y?

  3. The average weight of 20 girls in a school was 52 kg. Two new students of weight 54 kg and 50 kg were admitted. The ratio of this new average to the old one is:

  4. If the average of two numbers is 13 and the square root of their product is 12, then the difference between the numbers is:

  5. If the average of 5 consecutive odd integers in increasing order is 11 , then the average of the last 3 of them is:

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