11. If the sum of one-third and one-half of a number exceeds two-third of a number by 5, the number is |
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12. If 10 is subtracted from two-third of a number the result is equal to sum of 40 and one-third of the number, then find the number. |
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13. If the sum of a number and its square is 132, then what is the number? |
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14. Twenty times a positive integer is more than its square by 96, then the positive integer is |
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15. The thrice the square of a natural number is decreased by 8, the number is equal to 100 more than the number. |
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16. The sum of a number and its reciprocal is one-fifth of 26. What is the sum of that number and its square. |
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17. Find a positive number, which when increased by 8 is equal to 128 times reciprocal of the number. |
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18. The product of two natural numbers is 19. The sum of the reciprocal of its square is |
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19. The product of two natural numbers is 19. The sum of the reciprocal of its square is |
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20. Three numbers are in the ratio 4 : 5 : 6 and their product is 76680. the largest number is |
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