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If average of 20 observation `x_(1), x_(2), ……x_(20)` is y . then the average of `x_(1) - 101, x_(2) - 101, x_(3) - 101, ……. X_(20) - 101` is :

A

y - 20

B

y - 101

C

20y

D

101y

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The correct Answer is:
A
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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-AVERAGE-QUESTIONS
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  3. If average of 20 observation x(1), x(2), ……x(20) is y . then the aver...

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  9. The average of 8 readings is 24.3. Out of which the average of first t...

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  10. A student finds the average of ten 2-digit numbers. While copying numb...

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  11. A student calculated the average of 10, three digit number. But due to...

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  12. In an exam, the average marks obtained by the students was found to be...

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  13. In an examination, the average of marks was found to be 50. For deduct...

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  14. Find average 1, 2,2 3,3,3 4,4,4,4, ……… 7,7,7,7,7,7,7.

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  15. Find the average of 1^(3) + 2^(3) + 3^(3) + ……. 100^(3)

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  16. Average of 5 consecutive number is 23. Find the largest number

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  17. Average of 6 consecutive odd number is 40. Find the largest number.

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  18. If the average of 116 consecutive even number is 201. Find the sum o...

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  19. If the average of 7 consecutive even number is 44. Find the differen...

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  20. If the average of 17 consecutive even number is 143. Find the differen...

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