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The difference of two numbers is 4.If th...

The difference of two numbers is 4.If the difference of their reciprocals is 4/21, find the numbers

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The correct Answer is:
`7,3or-3,-7`
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NAGEEN PRAKASHAN-QUADRATIC EQUATIONS-Exercise 4d
  1. Find two consecutive odd natural numbers whose product is 323.

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  2. The product of two numbers is 12. If their sum added to the sum of th...

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  3. The difference of two numbers is 4.If the difference of their reciproc...

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  4. Determine two consecutive multiples of 3 whose product is 270.

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  5. Three consecutive positive integers are such that the sum of the squar...

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  6. A number consists of two digits. The product of these digits is 14. If...

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  7. A two digit number is four times the sum and three times the product o...

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  8. In a two digit number, the ten's digit is bigger. The product of the d...

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  9. A two digit number is made of two consccutive digits such that the sum...

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  10. In a certain positive fraction, the denominator is greater than the nu...

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  11. The denominator of a positive fraction is one more than twice the nume...

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  12. The numerator of a fraction is 4 less than denominator. If 1 is add...

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  13. The numerator of a fraction is 4 less than denominator. If 1 is add...

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  14. The sides of a right angled triangle containing the right angle are 4x...

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  15. The hypotenuse of a right triangle is 13 cm and the difference between...

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  16. The longest side of a right angled triangle is 4cm longer than one sid...

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  17. In a tringle the measure of the greatest angle is square of measure ...

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  18. The hypotenuse of a right triangle is 3sqrt(10)c m . If the smaller...

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  19. A square lawn has a path 2m wide around it. The area of the path is 19...

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  20. The number of seats in a row is equal to the total number of rows in a...

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