Question

A rectugular wall length 9 m and breadth 7 m is to be painted. Find the cost of painting the Wall at the rate of 20 rupees per Sq. m. ​

Answer 1

Answer:

for finding cost at first we have to find area of the wall therefore,

area of rectangle= l×b = 9×7= 63m²

now rate is given 1m²=20rs

so, for 63m²= 63×20= 1260 rs ANSWER

Step-by-step explanation:

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Answer 2

Answer:

Given,

Length = 9m

Breadth = 7m

Cost of per square m = 20 rupees

To find :

The total cost of rectangular wall

Now,

Area of rectangular wall = length × Breadth

= 9 × 7

= 63 m²

The cost of painting the wall at the rate of 20 rupees per square meter = 20 × 63

= Rs. 1260