Question 1
Pair of Linear Equations in Two Variables · 2017
Are 3x+2y=5 and 2x−3y=7 consistent?
Correct!
The answer is C, Yes; they have a unique solution.
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Pair of Linear Equations in Two Variables questions for CBSE X
Lakshyank has 168 Pair of Linear Equations in Two Variables questions for CBSE X. Try a few below, then practise the rest free.
Question 2
Pair of Linear Equations in Two Variables · 2019
For real p,q not both zero, solve px+qy=p−q and qx−py=p+q.
Correct!
The answer is B, x=1, y=−1.
Question 3
Pair of Linear Equations in Two Variables · 2019
Solve 15/(x−y)+22/(x+y)=5 and 40/(x−y)+55/(x+y)=13, with x≠±y.
Correct!
The answer is B, x=8, y=3.
Question 4
Pair of Linear Equations in Two Variables · 2024
Solve 2x+3y=7 and 4x+3y=11.
Correct!
The answer is A, x=2, y=1.
Question 5
Pair of Linear Equations in Two Variables · 2024
When do kx−y=2 and 6x−2y=3 have a unique solution?
Correct!
The answer is A, k≠3.
Question 6
Pair of Linear Equations in Two Variables
If x=a,y=b solve x−y=2 and x+y=4, find a,b.
Correct!
The answer is B, a=3,b=1.
Question 7
Pair of Linear Equations in Two Variables
Two people have incomes in ratio 9:7 and expenditures in ratio 4:3. Each saves ₹2000 monthly. Find their monthly incomes.
Correct!
The answer is B, ₹18,000 and ₹14,000.
Question 8
Pair of Linear Equations in Two Variables
Solve 2x+3y=11 and 2x−4y=−24; then find m such that y=mx+3.
Correct!
The answer is A, x=−2,y=5,m=−1.
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