Question

 A rectangular piece of a land measures 5.5 km by 2.25 km. Find the cost of tiling a land at the rate of Rs.12 per Square Kilometer. 
(a) Rs.12.37
(b) Rs.140.5
(c) Rs.648.5
(d) Rs.148.50​

Answer 1

Answer:

The cost for tiling the land at the rate of Rs.12 per sq.km is (d) Rs.148.50

Step-by-step explanation:

The area of the rectangular piece of land is

(5.5×2.25) sq.km

= 12.375 sq.km

So, the cost for tiling it will be

Rs.(12.375×12)

= Rs.148.50

Therefore, the correct option is (d).

Answer 2

Answer : The correct answer is option d

The total cost of tiling is 148.5 Rs

Step-by-step Explanation :

Given : length of Rectangle = 5.5 km.

Breadth of Rectangle = 2.25 km

To find : Cost of tiling a land at the rate of Rs.12 per Square Kilometer = ?

Length of Rectangle ( land ) = 5.5 km , Breadth of Rectangle (land) = 2.25

Area of rectangular land = length × breadth

= 5.5 × 2.25

= 12.37 km²

Cost of tiling =Rs 12 per km²

1 km² ------------------- 12 Rs

12.37 km² -------------- ?

Just simply do cross multiplication,

We get,

Total cost of tiling = 12.37 × 12

= 148.5 Rs

Hence the total cost of tiling is 148.5 Rs