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If A is (1)/(6) of C, and B is twice of ...

If A is `(1)/(6)` of C, and B is twice of A, and the average of A,B and C is 30, then the difference between A and C is

A

40

B

60

C

50

D

80

Text Solution

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The correct Answer is:
C
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GAGAN PRATAP -AVERAGE-Multiple Choice Questions
  1. The average of three numbers a, b and c is 2 more than c. The average ...

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  2. The average monthly income (in Rs) of certain agricultural workers is ...

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  3. If A is (1)/(6) of C, and B is twice of A, and the average of A,B and ...

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  4. The average of the age of Sonu, Hari and Govind is 30 years. If their ...

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  5. Out of 6 numbers, the sum of the first 5 numbers is 7 times the 6th nu...

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  6. The average of the first four numbers is three times the fifth number....

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  7. The average of five positive numbers is 56. If the first number is thr...

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  8. The side of a square exceeds the side of another square by 4cm and the...

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  9. Of the three numbers, the average of the first and the second is great...

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  10. The average of a non-zero number, its square and its cube is 127 times...

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  11. The average of x, y and z is 45. x is as much more than the average as...

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  12. Out of four numbers the average of the first three is 26 and that of t...

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  13. A student finds the average of ten 2-digits numbers. While copying num...

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  14. In a class of 180 students, 45% are girls and the remaining are boys. ...

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  15. In a class of 60 students, 40% are girls. The average weight of the wh...

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  16. The average height of 5 boys is 175 cm. A sixth boy joined the group a...

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  17. The weight of 9 members out of 22 are measured consecutively and their...

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  18. A library lias an average of 265 visitors on Sundays and 130 visitors ...

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  19. In a class of 80 students, 60% participate in games and the rest do no...

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  20. The average score in Mathematics of 90 students of section A and B of ...

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