IGCSE Mathematics Paper-1: Specimen Questions with Answers 309 - 313 of 324

Question 309

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x is an integer between 50 and 80.

Write down the value of x when it is

A prime factor of 154

Explanation

is a composite number

Factor pairs:

Factors of

is an integer between and

So, answer is is between and.

Question 310

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From the list above, write down

An irrational number.

Explanation

  • An irrational number is a real number that cannot be written as a simple fraction.
  • In those number
  • Which is not an integer and therefore is an irrational number

Question 311

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A and B are two points marked on a map.

By measuring a suitable angle, find the bearing of A from B.

The two points marked on a map

The Two Points Marked on a Map

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Explanation

the north line going clockwise

The North Line Going Clockwise

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  • In measuring angle always measure bearings from the north line going clockwise
  • The bearing of A from B refers to the angle which is measured from the point A looking at B.

The sum of interior angles of same side of transversal

Question 312

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Write down the equation of a line through (0,0) parallel to .

Explanation

Here

Question 313

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From the list above, write down

A factor of 27

Explanation

  • Here find the factor of 27
  • Factor of 27 is 1,3, 9,27
  • In this number is factor of 27
  • Because

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