Question

Arun made a sketch of his mother standing alongside a wall .The height measured in the sketch of his mother and the wall are 35 cm and 105 cm respectively. The actual heights of his mother and the building are proportional to the sketch’s heights. If the height of his mother is 150cm , then find the actual height of the wall .​

Answer 1

Answer:

Given,

Arun sketches his mother alongside a wall. The ratio of the mother and the wall are 35cm : 105cm. If it is proportional to IRL, the height of the mother is 150cm, we have to find the height of the wall

35 : 105

(Simplification by 7)

5 : 15

(Simplification by 5)

1 : 3

So, the height of mother - wall ratio is 1:3

So, if mother is 1m, then the wall is 3m (IRL)

Similarly, if mother is 150cm, then the wall is (150 × 3)

= 450cm

So, the height of the wall is 450cm

Checking

150 : 450

(Simplification by 3)

50 : 150

(Simplification by 5)

10 : 30

(Cutting of zeros)

1 : 3

We got the same ratio as the drawing

So, the answer is correct

Abbreviations

IRL = In Real Life