Question

Jennifer wants to put a border around her bedsheet. Its length is 10m while its breadth is 5m 60cm. Find the total cost of the border required at the rate of ₹90 per metre.
A) ₹2808
B) ₹2505
C) ₹2408
D) ₹2605

Choose the correct option from the above and explain why it is so.

Answer 1

❍ Given :-

• Length = 10 m = 1000 cm
• Breadth = 5m 60cm = (500 + 60)cm = 560 cm
• Rate = ₹90 per metre

❍ To Find :-

• Cost of border required

❍ Solution :-

➸ From the information given we can assume that bedsheet is rectangle.

$\tt \fbox \orange{Perimeter = 2(Length + Breadth)}$

$\tt →Perimeter = 2(1000 + 560)$

$\tt →Perimeter = 2(1560)$

$\tt → \red{Perimeter = 3120 \: cm}$

➸We know that,

• 100cm = 1 m

⇝ So, 3120cm = 31.2m

Total cost of border required = Perimeter × Rate

= 31.2 × 90

= ₹2808

∴ The total cost of the border required at the rate of ₹90 per metre is ₹2808.

Option (A) ₹2808 is the right option.