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What number must be added to each of the numbers 8, 13, 26 and 40 so that the numbers obtained in this order are in proportion?
किस संख्या को 8, 13, 26 और 40 में जोड़ा जाना चाहिए ताकि इस क्रम में प्राप्त संख्याएँ समानुपात में हों?

A

2

B

3

C

1

D

4

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PINNACLE-RATIO & PROPORTION-EXERCISE
  1. The fourth proportional to 10, 12, 15 is: 10, 12, 15 का चौथा आनुपाति...

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  2. The proportion among three numbers is 3 : 4 : 5 and their LCM is 1800....

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  3. What number must be added to each of the numbers 8, 13, 26 and 40 so t...

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  4. By adding 3 and 5 in numerator and denominator of a fraction it become...

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  5. The ratio of the number of men and women in a factory is 14: 19. If th...

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  6. The ratio of present ages (in years) of a father and son is 15 : 8. Si...

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  7. The salaries of Vipin and Dinesh are in the ratio 5 : 8. If the salary...

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  8. When 50% of a number A is added to B, the second number B increases by...

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  9. If (a+3b):(2a+4b)=3:5, then (a-b):(a+b) is equal to: यदि (a+3b):(2a+...

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  10. The average age of a man and his son is 60 years. The ratio of their a...

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  11. Two numbers A and B are, respectively, 80% and 20% more than a third n...

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  12. The perimeter of a rectangular field is 32 meters and its sides are in...

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  13. The ages of Fatima and Ahmed are in the ratio of 3:8. The sum of their...

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  14. How much should be added to each term of 4:7 so that it become 2:3 4...

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  15. The perimeter of a rectangle is 50 cm. Its area and length are in the ...

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  16. The average price of three items is Rs14,265. If their prices are in t...

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  17. The length and breadth of a rectangle are in the ratio 5 : 3. If the l...

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  18. The length and breadth of a rectangle are in ratio 3:2. If its perimet...

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  19. The ratio of tables and chairs in a room is 7:9. If there are 560 tabl...

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  20. The incomes of two persons P and Q are in the ratio 5:6. If each of th...

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