# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 156 - 163 of 1484

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## Question number: 156

Edit
MCQ▾

### Question

For what value of k, the system of equations has unique solutions.

### Choices

Choice (4)Response

a.

b.

All natural numbers except 10

c.

d.

Does not exist

## Question number: 157

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MCQ▾

### Question

For what values of a and b will the equations represent coincident lines?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 158

Edit
MCQ▾

### Question

For what value of k, the system of equations has unique solutions.

### Choices

Choice (4)Response

a.

b.

All natural numbers except 2

c.

d.

Does not exist

## Question number: 159

Edit
MCQ▾

### Question

The sum of two numbers is 20 and their product is 64. Then one of the number is.

### Choices

Choice (4)Response

a.

14

b.

12

c.

8

d.

16

## Question number: 160

Edit
MCQ▾

### Question

The coordinates of the points where the lines meet the

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 161

Edit
MCQ▾

### Question

The solution of the system of equations and is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 162

Edit
MCQ▾

### Question

Which of the following system of equations has no solution?

### Choices

Choice (4)Response

a.

b.

c.

d.

All a. , b. and c. are correct

## Question number: 163

Edit
MCQ▾

### Question

Which of the following system of equations has unique solution?

### Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

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