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

Question 241

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Factories completely .

Explanation

  • The common factor is
  • Factor it out:

Question 242

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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 243

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A school has 400 students.

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

The Number of Students Attending School
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 244

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The population of Latvia in 1,989 was 30, 00,000. In 1,994 it was 26, 00,000.

Calculate the percentage decrease in the population between 1,989 and 1,994.

Explanation

  • Population of Latvia in 1,989 = 3,000,000
  • Population of Latvia in 1,994= 2,600,000

Therefore,

Question 245

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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

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