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2. Quadratic Equations
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Q4 of 87 Page 52

Vivek is older than Kishor by 5 years. The sum of the reciprocals of their ages is 1/6. Find their present ages.

Let Kishor’s present age be x. Then, vivek’s age = x + 5

∴


⇒



⇒


⇒



⇒


⇒




Hence, age cannot be negative. ∴ age od Kishor is 10


and age of Vivek is 15.


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Questions · 87
2. Quadratic Equations
1 2 3 4 5 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 1 2 2 2 3 3 3 4 5 6 7 7 1 2 3 4 5 6 7 8 9 10 1 1 1 1 1 1 1 1 2 3 3 3 4 5 5 5 6 6 6 7 7 7 7 7 7 8 9 10 11 12 13 14 15
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