Question

Avon 15 metre long and 64 abroad lawn has two roads at right angles 12.2 wide running parallel to its length

Answer 1

Step-by-step explanation:

1

Secondary School Math 5 points

A 115 m long and 64 m broad lawn has two roads at right angles , one 2 m wide , running parallel to its length , and the other 2.5 m wide , running parallel to its breadth . find the cost of gravelling the roads at ₹ 60 per m square.

Ask for details Follow Report by DivyanshSingh111 09.02.2018

Answers

DarkLight750

DarkLight750 Expert

From below Figure you can see the Setup here

The Length of Road ║ to length is 115m and width 2m

So Area of Road ║ to Length =115*2=230m²

The Length of Road ║ to Breath is 64m and width 2.5m

So the Area of Road ║ to breath =64*2.5=160m²

But as you can observe the area common to both roads is Taken Twice

So The area of Common Road = 2*2.5=5m²

So the Area of Road that need Gravelling =230+160-5=385m²

The Price for Gravelling =385 * 60 = 23100 rupees