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Find two numbers whose sum is 27 and product is 182.

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Question

Find two numbers whose sum is 27 and product is 182.

Sum
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Solution

Sum of numbers = 27

Product of numbers = 182

Let first number = x

Second number = x + 1

Product of both the numbers = 182

x(27 - x) = 182

27x - x2 = 182

-x2 + 27x - 182 = 0

x2 - 27x + 182 = 0

x2 - 14x - 13x + 182 = 0

x(x - 14) - 13(x - 14) = 0

(x - 14)(x - 13) = 0

x - 14 = 0 and x - 13 = 0

x = 14 and x = 13

First number = x = 13

Second number = x + 1 = 13 + 1 = 14

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Chapter 4: Quadratic Equations - EXERCISE 4.2 [Page 44]

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NCERT Mathematics [English] Class 10
Chapter 4 Quadratic Equations
EXERCISE 4.2 | Q 3. | Page 44
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