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

Question number: 241

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Factories completely .

Explanation

  • The common factor is

  • Factor it out:

Question number: 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 number: 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 number: 244

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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

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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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