# IGCSE Mathematics Paper-1: Specimen Questions with Answers 206 - 211 of 324

## Question number: 206

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An integer n is such that . Write down a value of n which is

A prime numbers

### Explanation

1. A prime number is a whole number greater than 1 whose only factors are 1 and it self.

2. A factor is a whole numbers that can be divided evenly into another number.

3. The find the prime number between 80 to 90 is 83 and 89.

• Here find the square number between 80 to 90

• Here A square number is 81.

• And 81 is between 80 to 90.

## Question number: 207

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M is the mid-point of AC. Write as a column vector.

### Explanation

Co-ordinates of the mid-point of AC are:

Here coordinates is

The coordinates of the vector are

## Question number: 208

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When , find the value of

Here

## Question number: 209

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Choose one of the symbols given above to complete each of the following statements.

When x = 12 and y=-4, then

### Explanation

• Here x = 12 and y=-4

• So,

## Question number: 210

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When , find the value of

Here given the

## Question number: 211

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The diagram shows a square tile of side 16 centimeters with 4 identical quarter circles shaded.

Calculate the area of the unshaded region.

### Explanation

The 4 quarter circles combined to from 1 complete circle with radius.

Q-17