# IGCSE Mathematics Paper-1: Specimen Questions with Answers 241 - 245 of 324

## Question number: 241

### Write in Short

Factories completely .

### Explanation

The common factor is

Factor it out:

## Question number: 242

### Write in Short

In Gujarat, a bus leaves Surat at 9: 30 and arrives in Ahmedabad at 12: 50.

The distance from Surat to Ahmedabad is 450 kilometers. Calculate, in kilometers per hour, the average speed for the journey.

### Explanation

Total time of journey = 3 hours

Total distance = 450 kilometers

## Question number: 243

### Write in Short

A school has 400 students.

The table shows the number of students attending school in one week.

Monday | Tuesday | Wednesday | Thursday | Friday |

370 | 380 | 350 | 340 | 390 |

For these values,

iii. Find the range.

### Explanation

In a data set of

The lowest value is 370.

And the highest value is 390.

Therefore

## Question number: 244

### Write in Short

The population of Latvia in 1989 was 30,00,000. In 1994 it was 26,00,000.

Calculate the percentage decrease in the population between 1989 and 1994.

### Explanation

Population of Latvia in 1989 = 3000000

Population of Latvia in 1994 = 2600000

Therefore,

## Question number: 245

### Write in Short

In Gujarat, a bus leaves Surat at 9: 30 and arrives in Ahmedabad at 12: 50.

How long, in hours and minutes, does the journey take?

### Explanation

A bus leaves Surat at 9: 30

Arrives in Ahmedabad at 12: 50

So,

9: 30 to 10: 00 = 30 minutes

10: 00 to 12: 00 = 2 hours

12: 00: to 12: 30 = 30 minutes

Addition of the all minutes