# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 273 - 279 of 968

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## Question number: 273

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MCQ▾

### Question

The roots of are real and unreal, if is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 274

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MCQ▾

### Question

A man walks a distance of 50 km in a given time. If he walks 5 km/hr faster, he will perform the journey 5 hrs before. His normal rate of walking, is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 275

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MCQ▾

### Question

Two numbers whose sum is 6 and absolute value of whose difference is 8 are the roots of the equation ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 276

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MCQ▾

### Question

The expression is divisible by. Then m is a divisor of ________

### Choices

Choice (4) Response

a.

20

b.

12

c.

16

d.

4

## Question number: 277

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### Question

The roots of the equation can be found by solving ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 278

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MCQ▾

### Question

Solve the equation by using quadratic formula, then x is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 279

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MCQ▾

### Question

In the equation, the sum of the roots is 4 and the product of the roots is. Then h and k respectively, have the values ________

### Choices

Choice (4) Response

a.

4 and -3

b.

8 and -3

c.

8 and 6

d.

-3 and 8