# IGCSE Mathematics Paper-1: Specimen Questions with Answers 270 - 275 of 324

## Question 270

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### Write in Short

Short Answer▾Find the circumference of a circle of radius 7.1 cm.

Write down your answer

Correct to the nearest centimeter.

### Explanation

- Circumference of circle is 44.588
- Here find the nearest centimeter.
- So, the answer is 45 cm.

## Question 271

## Question 272

Edit

### Write in Short

Short Answer▾There are 10 boys and 15 girls in a choir.

The teacher chooses one choir member at random.

What is the probability that this is a girl?

Write your answer as a fraction.

### Explanation

- Given that the number of boys and girls in a choir is a follows:
- Number of boys = 10
- Number of girls = 15
- Then we conclude that the total number of students in the class = 25 students.

## Question 273

### Explanation

- Here polynomial has four terms, you may be able to factor by grouping
- If the expressions in brackets match, you can factor by grouping:
- Factor by grouping.

Apply the distributive property

## Question 274

## Question 275

### Explanation

- Here given the
- First to any common value in equation