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If two positive integers differ by 4 an...

If two positive integers differ by 4 and sum of their reciprocals is `(10)/(21)` then one of the number is

A

1

B

5

C

3

D

21

Text Solution

Verified by Experts

The correct Answer is:
C
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BHARDWAJ ACADEMY-NUMBER SYSTEM -CHAPTER EXERCISE
  1. Which of the following fractions is less than 7/8 and greater th...

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  2. Descending order of (15)/(16) , (11)/(20), (13)/(25) is

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  3. If two positive integers differ by 4 and sum of their reciprocals is ...

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  4. If we multiply a fraction by itself and divide to product by its recip...

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  5. Find the value of 200 xx 439 + 200 xx 321 in standard form is

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  6. Find the value of 1 ^(3) + 2 ^(3) + 3 ^(3) + ...+ upto 10th terms.

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  7. Find the sum of first 21 odd numbers.

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  8. Find the value of 9 + 10 + 11 + 12 + … + 21.

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  9. If sum of six consecutive odd numbers is 168, then find the largest ...

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  10. Find the sum of all prime numbers less than 20.

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  11. 2x-13,2x-11, 2x-9,2x-7 are consecutive

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  12. (4)/(16) - (1)/(8) = (3)/(8), (6)/(7) - (2)/(9) = (4)/(2) The above ...

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  13. Find out the unit digit in (13)^(2003)

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  14. A rectangle is divided horizontally into two equal parts. The upper p...

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  15. If a ** b = a ^(2) + b ^(2) and a . b = a ^(2) - b ^(2), then the val...

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  16. Find the value of(547527)/(82),if (547.527)/(0.0082)= x.

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  17. Which of the fraction is least ?

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  18. When the number 3^(99) is divided by 4, the remainder is

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  19. Shown here are expressions given to Seema, Anees, Asha and Tessy with...

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  20. If A = (3)/(4)div (5)/(6) , B = 3 div[ ( 4 div 5) div 6], C = [3 div...

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