Quiz about Linear Equations In Two Variables

Question 1

A test consists of 'True' or 'False' questions. One mark is awarded for every correct answer while $$\frac{1}{4}$$ mark is deducted for every wrong answer. A student knew answers to some of the questions. Rest of the questions he attempted by guessing. He answered $$120$$ questions and got $$90$$ marks.
![](http://admin.getprephub.com/media/editor/2604-2608_20211026061026618448.png)

If answer to all questions he attempted by guessing were wrong, then how many questions answered correctly to score $$95$$ marks?

Accepted Answer

Covalent bond

Question 2

In the given system of equations determine whether the system has a unique solution, no solution or infinite solutions. 
$$ x-2 y-8=0$$
$$5 x-10 y-10=0$$

Accepted Answer

Covalent bond

Answer

No Solution

Answer

Unique solution

Answer

Can't Say

Answer

Infinitely many solutions

Question 3

In the given system of equations determine whether the system has a unique solution, no solution or infinite solutions. 
$$ 3 x-5 y=20$$
$$6 x-10 y=40$$

Accepted Answer

Covalent bond

Answer

Unique solution

Answer

Infinitely many solutions

Answer

No Solution

Answer

Can't Say

Question 4

If the system of equations $$3 {x}+{y}=1$$ and $$(2 {k}-1) {x}+({k}-1) {y}=2 {k}+1$$ is inconsistent, then $${k}=$$

Accepted Answer

Covalent bond

Answer

$$2$$

Answer

$$1$$

Answer

$$0$$

Answer

$$-1$$

Question 5

In the given system of equations determine whether the system has a unique solution, no solution, or infinite solutions.
$$2x+y-5=0$$
$$4 x+2 y-10=0$$

Accepted Answer

Covalent bond

Answer

No Solution

Answer

Unique solution

Answer

Can't Say

Answer

Infinitely many solutions

Linear Equations In Two Variables Cbse Class 10 Maths Problems and Solutions

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