Question

The length and breadth of a rectangle are 25.6m and 12.5m.If it was bought for Rs.8000,the cost of 1sq.m.is...​

Answer 1

Answer:

₹12.5 is the cost of fencing = 1m

₹ 1 is the cost of fencing = 1/12.5 m

₹ 25000 is the cost of fencing= 25000/12.5 m

= 2000m

Let the length and breadth be 5x and 2x

According to the problem,

2( 5x +2x) = 2000

=> 7x = 1000

=> x= 1000/7

Therefore,

length = 5x = (5×1000)/7 = 714.29 m (approx)

breadth = 2x = (2×1000)/7 = 285.71 m (approx)

Hope it hepls!

Answer 2

Length = 25.6 m

Breadth = 12.5 m

First, we will find the area of the rectangle

Area = length × breadth

        = 25.6 × 12.5

        = 320 m²

Now, this whole area of 320 m² was bought for Rs. 8000

320 m² = 8000

∴ 1 m² = 8000 / 320

           = 25

So, the cost of 1 m² will be Rs. 25