Download the app

Questions  

Which of the following pairs of linear equations has unique solution, no solution, or infinitely many solutions. In case there is a unique solution, find it by using cross multiplication method. 

(i) x – 3y – 3 = 0 and 3x – 9y – 2 = 0

(ii) 2x + y = 5  and 3x + 2y = 8

(iii) 3x – 5y = 20 and 6x – 10y = 40

(iv) x – 3y – 7 = 0 and 3x – 3y – 15 = 0

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is A

(i) x – 3y – 3 = 0 and 3x – 9y – 2 = 0

a1a2=13, b1b2=-3-9=13,c1c2=-3-2=32 

a1a2=b1b2c1c2

Since, the given set of lines are parallel to each other, they will not intersect each other. Hence, there is no solution for these equations.

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

detailed solution

Correct answer is 1

(i) x – 3y – 3 = 0 and 3x – 9y – 2 = 0

a1a2=13, b1b2=-3-9=13,c1c2=-3-2=32 

a1a2=b1b2c1c2

Since, the given set of lines are parallel to each other, they will not intersect each other. Hence, there is no solution for these equations.

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

ctaimg

Create Your Own Test
Your Topic, Your Difficulty, Your Pace



Practice More Questions

Easy Questions

Moderate Questions

Difficult Questions


Download the app

phone icon
whats app icon