Question

A 5m long and 75cm wide saree is to be bordered with 6cm wide lace. find the cost of putting the border at the rate of ₹0.50 per sq cm​

Answer 1

Answer:

Cost = Rs 3522.

Step-by-step explanation:

Length of rectangle ABCD = 5m = 500 cm

Breadth of rectangle ABCD = 75 cm

∴ Area of rectangle ABCD = (500 × 75) cm2

6 m wide lace is bordered all around the rectangle ABCD.

Now, PS = AD + 6 cm + 6 cm = (75 + 6 + 6) cm = 87 cm

PQ = AB + 6 cm + 6 cm = (500 + 6 + 6) cm = 512 cm

∴ Area of rectangle PQRS = (87 × 512) cm2  

Area of bordered lace = Area of rectangle PQRS – Area of rectangle ABCD

                                      = (87 × 512) cm2 – (500 × 75) cm2

                                      = 44544 – 37500

                                      = 7044 cm²

Cost of 1 cm² border = Rs 0.50

∴ Cost of 7044 cm² border = Rs 0.50 × 7044 = Rs 3522

Answer 2

Answer:

3522 is correct answer of this question