IGCSE Mathematics Paper-1: Specimen Questions with Answers 116 - 119 of 175

Question number: 116

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Essay Question▾

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Mahi goes to abroad and changes into Rupees. They take and then change the rest of the money at a rate of . How much does Mahi receive in Rs. ?

Explanation

Here, Mahi goes to abroad and changes into Rupees.

They take .

So, now she has .

Now, .

Question number: 117

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Find the equation for the line which is perpendicular to and passing through point (6,3).

Explanation

Line passing through point (6, 3)

Line Passing through Point (6,3)

  • So, slope of two perpendicular lines is .

So, we can find slope of required line by using slope of given line which has slope

So, slope of required line =

So, now by using formula of equation passing through a point (6,3):

, where, and m = … (from (I) ).

.

Question number: 118

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Short Answer Question▾

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Mountain Mauna Loa’s height is 4169 meters in nearest thousand meters. What can be said about the height, H meters, of the Mountain Mauna Loa.

Explanation

Here, Mountain Mauna Loa’s height is 4169 meters.

  • So, nearest thousand meters can be 3169 m and 5169 m.
  • So, the statement about the height can be:

Question number: 119

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Essay Question▾

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A sloping road makes an angle of to the horizontal. The difference in height between upper-sided road and below sided road is 20 m. Find length of the slope.

A triangle having angle of 380 to the horizontal

A Triangle Having Angle of 380 to the Horizontal

Explanation

Here, as given angle A is , BC = 20 m and we need to find length of AC which is the slope of road.

So, by using formula:

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