arrow
arrow
arrow
If A:B:C = 2:3:5, then the ratio of AB:BC:CA\frac{A}{B}:\frac{B}{C}:\frac{C}{A}BA​:CB​:AC​​ is equal to:
Question

If A:B:C = 2:3:5, then the ratio of AB:BC:CA\frac{A}{B}:\frac{B}{C}:\frac{C}{A}​ is equal to:

A.

20:18:75

B.

75:20:29

C.

18:20:79

D.

20:25:39

Correct option is A

Given:

A:B:C = 2:3:5

Formula Used:

Ratio and Proportions

Solution:

Let the numbers A,B and C be 2x,3x and 5x respectively

Then AB=2x3x=23\frac{A}{B} = \frac{2x}{3x} = \frac{2}{3}​​

BC=3x5x=35 \frac{B}{C} = \frac{3x}{5x} = \frac{3}{5}​​

CA=5x2x=52 \frac{C}{A} = \frac{5x}{2x} = \frac{5}{2}​​

AB:BC:CA=23:35:52 \frac{A}{B}:\frac{B}{C}:\frac{C}{A}=\frac{2}{3}:\frac{3}{5}:\frac{5}{2}​​

Taking LCM of 3,5 and 2 = 30

23×30:35×30:52×30\frac{2}{3}\times 30:\frac{3}{5}\times 30:\frac{5}{2}\times 30​​

=20:18:75= 20:18:75​​

Free Tests

Free
Must Attempt

SSC GD PYP (Held on 4 Feb 2025 S1)

languageIcon English
  • pdpQsnIcon80 Questions
  • pdpsheetsIcon160 Marks
  • timerIcon60 Mins
languageIcon English
Free
Must Attempt

Hindi Section Test 1

languageIcon English
  • pdpQsnIcon20 Questions
  • pdpsheetsIcon40 Marks
  • timerIcon12 Mins
languageIcon English
Free
Must Attempt

SSC GD Constable Full Mock Test 1

languageIcon English
  • pdpQsnIcon80 Questions
  • pdpsheetsIcon160 Marks
  • timerIcon60 Mins
languageIcon English

Similar Questions

test-prime-package

Access ‘Delhi Police Constable’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
368k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow