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

## Question number: 116

### Describe in Detail

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

### Write in Short

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

### Explanation

- 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

### Write in Short

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

### Describe in Detail

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.

### 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: