Question

a table cover 4m by 2 m is spread on a table. find the cost of polishing the top of the table at rs 2.25 per sq.m if 25 cm table cover is hanging all around the table

Answer 1

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Answer :

Area = 5.25 m²

Total Cost = Rs 131.25

Step By Step Explanation :

Given :

Length of the cover (l) = 4 m

Breadth of the cover (b) = 2 m

Table cover hanging all around the table = 25 cm = 0.25 m

[∵ 100 cm = 1 m]

Now,

Length of the table top :

⇒ 4 m - 2 × 0.25 m

⇒ 4 m - 0.5 m

⇒ 3.5 m

Breadth of the table top :

⇒ 2 m - 2 × 0.25 m

⇒ 2 m - 0.5 m

⇒ 1.5 m

Again,

Area of the table top ⇒ l × b

l × b ⇒ 3.5 m × 1.5 m

l × b ⇒ 3.5 m × 1.5 m ⇒ 5.25 m²

According To The Question,

The Cost of polishing the table top is Rs 25 per square meter.

Therefore,

Total cost of polishing the table top:

⇒ Rs 25 × 5.25

⇒ Rs 131.25

Hence,

The area of the table top is 5.25 m².

The total cost of polishing the table top is Rs 131.25