IGCSE Mathematics Paper-2: Specimen Questions with Answers 4 - 8 of 15

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Question 4

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Convert the following speed as desired.

i. 100 meter per minute into km per hour.

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Explanation

ii. 40 m/second into km/hour.

Answer:

Explanation:-

1 km = 1000 m

So,

Question 5

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A rectangle has sides of length 4.1 cm and 9.1 cm correct to 1 decimal place. Calculate the upper bound for the area of the rectangle as accurately as possible.

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Explanation

  • The upper bound is to do with the accuracy of the decimal place, so the upper bound so 4.1 is 4.15, because this is as high as it could go without it being closer to 4.2 at one decimal place.
  • The upper bound of 9.1 is 9.15, similarly as if it went oven 9.15 it would be closer to 9.2 at one decimal place.
  • So, the area is simple the upper bounds of each side multiplied

Question 6

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Solve these simultaneous equations.

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Explanation

… (1)

… (2)

Equation 1 multiply by 2

… (3)

Subtract equation (3) - (2) gives:

Value put in equation 1

Question 7

Appeared in Year: 2009

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The answer to this matrix multiplication is of order .

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Explanation

This is , which will give us a answer.

Question 8

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Write as a single fraction in its simplest form .

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Explanation

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