Question

8. The cost of cementing a square courtyard at₹11 per square metre is ₹1100. Find the cost of fencing it
at the rate of 10 per metre.
9. Find the cost of flooring the verandah at the rate of 12 per m² if the length and breadth of the verandah
are in the ratio 3 : 2 and its perimeter is 40 m.​

Answer 1

Answer:

So, let's start

Step-by-step explanation:

8)

= Rs 11 per square meter if cost is Rs 1100

Rs 1 per square meter if it costs 1100/11

Rs 10 per square meter if it costs Rs 1000

So, the answer is ₹1000

9) So, let it be x

or, 10x=40

or, x= 4

So, 3*4=12

and, 2*4=8

So, the cost of it,

12*40

= ₹480.