Pranay Singh
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Find two consecutive positive integers, sum of whose squares is 365.

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NCERT Solutions for Class 10 Maths Chapter 4
Important NCERT Questions
Quadratic Equation
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 4.2
Page No:76
Questions No:4

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2 Answers

  1. Let the first number = x Therefore, second number = x + 1
    according to the questions, x² + (x + 1)² = 365
    ⇒ x² + x² + 2x + 1 = 365 ⇒ 2x² + 2x – 364 = 0
    ⇒ x² + x – 182 = 0 ⇒ x² – 13x + 14x + 182 = 0
    ⇒ x(x – 13) + 14 (x – 13) = 0 ⇒ (x – 13) (x + 14) = 0
    ⇒ (x – 13) = 0 or (x + 14) = 0 ⇒ Either x = 13 or x = – 14
    Hence, the two consecutive positive integers are 13 and 14.

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  2. Get Hindi Medium and English Medium NCERT Solution for Class 10 Maths to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-10/maths/chapter-4/

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