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When x is subtracted from each of 19, 28, 55 and 91, the numbers so obtained in this order are in proportion . What is the mean proportion between (x + 9) and `x^2`? जब x को 19, 28, 55 और 91 में से घटाया जाता है, तो इस क्रम में प्राप्त संख्याएँ अनुपात में होती हैं। (x + 9) और `x^2` के बीच माध्य अनुपात क्या है?

A

28

B

24

C

32

D

27

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PINNACLE-RATIO & PROPORTION-EXERCISE
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  2. A certain sum is divided between A, B, C and D such that the ratio of ...

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  3. A,B and C invested capital in ratio 5 : 7 : 4, the time of their inves...

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  4. If a : b : c =1/4:1/3:1/2, then a/b : b/c: c/a =? यदि a : b : c =1/...

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  5. When x is subtracted from each of 19, 28, 55 and 91, the numbers so ob...

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  6. A and B enter into a partnership with capital in the ratio 5 : 6. Afte...

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  7. The sum of three natural numbers is 280. If the ratio between the firs...

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  8. The ratio of boys and girls in a school is 27: 23. If the difference b...

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  9. The ratio between the present ages of A and B is 3:5. If the ratio of ...

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  10. A, B and C started a business by investing ₹13,750, ₹16,250 and ₹18,75...

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  11. Seven years ago,the ratio of the ages of A and B was 4 : 5. Eight year...

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  12. A and B started a business investing amounts of Rs. 92,500 and Rs. 1,1...

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  13. A sum of Rs.8,200 was divided among A, B and C in such a way that A ha...

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  14. A and B started a business investing amount of 92,500 and 1,12,500 res...

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  15. A sum of Rs.8200 was divided among A, B and C in such a way that A had...

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  16. Three partners shared the profit in a business in the ratio 8 : 7 : 5....

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  17. A, B and C started a business investing amounts of Rs13,750 Rs.16,250 ...

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  18. Seven years ago, the ratio of the ages of A and B was 4 : 5. Eight yea...

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  19. A,B,C subscribe a sum of Rs.75,500 for a business. A subscribes Rs.3,5...

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  20. In a school, 5/12 of the number of students are girls and the rest are...

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