arrow
arrow
arrow
If the sum of squares of two positive numbers is 2437 and square root of one number is 7, find the other number.
Question

If the sum of squares of two positive numbers is 2437 and square root of one number is 7, find the other number.

A.

6

B.

16

C.

12

D.

8

Correct option is A

Given:

The sum of the squares of two numbers is 2437.

The square root of one number is 7, i.e., the number is 72=497^2 = 49​​

Concept Used:

If two numbers are a and b, and their squares sum to a given value, then:

a2+b2=Given Suma^2 + b^2 = \text{Given Sum}​​

We can rearrange to solve for b.

Solution:

a2+b2=2437a^2 + b^2 = 2437​​

Substitutinga2=492=2401 a^2 = 49^2 = 2401​​

b2=24372401b^2 = 2437 – 2401​​

b2=36b^2 = 36​​

b=6

Option (a) is right.

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English
test-prime-package

Access ‘RRB NTPC’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
353k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow