IGCSE Mathematics Paper-1: Specimen Questions with Answers 10 - 14 of 175

Question number: 10

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Short Answer Question▾

Write in Short

Solve as a single fraction.

Explanation

Here,

Question number: 11

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Short Answer Question▾

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Harsh’s height is 185 cm, to the nearest centimeter. Complete the statement about the limits of his height.

Explanation

Here, He is greater than or equal to 184.5 centimeters but less than 185.5 centimeters.

In mathematical form:

Question number: 12

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Short Answer Question▾

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The River Nile is 6700 kilometers long in nearest hundred kilometers. What can be said about the length, L kilometers, of the River Nile.

Explanation

Here, The River Nile is 6700 kilometers long.

  • So, nearest hundred kilometers can be 6600 km and 6800 km.
  • So, the statement about the length can be:

Question number: 13

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Essay Question▾

Describe in Detail

Solve with detailed working:

(a)

(b)

Explanation

Here,

(a) Left Hand Side (LHS) =

Right Hand Side (RHS) =

Thus, LHS = RHS.

(b) Left Hand Side (LHS) =

Right Hand Side (RHS) =

Thus, LHS = RHS.

Question number: 14

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Essay Question▾

Describe in Detail

Aisha bought 30 meters of cloth at a cost of . She sold 25 meters of the cloth at per meter and 5 meters at per meter.

(a) Calculate the profit she made.

(b) Calculate this profit as a percentage of the original cost.

Explanation

Here, Aisha bought 30 meters of cloth at a cost of .

So, cost price CP =

Now, she sold 25 meters of the cloth at per meter:

She sold 5 meters at per meter:

So, total selling prices SP =

(a)

(b) Percentage of profit of the original cost :

So,

Then,