Supriya bought a painting of dimension 25 cm × 18 cm for Rs 2500. The picture has a wooden
frame of width 5 cm around it.
(a) Find the area of the wooden frame. (2)
(b) Supriya decorated the wooden frame by pasting a semi-circular
wooden block around it in such a way that it covers the length
and width of the frame as shown in the figure. What is the total
area of the decorated frame? (2)
(c) Supriya sold the decorated wooden frame at a profit of 25%.
What is the Selling Price of the decorated wooden frame? (2)
pls answer its a request
Answers
Step-by-step explanation:
dimesions of the painting given as l = 25 cm and b = 18 cm
=> area of the painting = l*b = 25*18 cm²
= 450cm²
(a) Area of the wooden frame:
width of the wooden frame = 5cm
=> dimension of the painting with wooden frame will be
l = 25+5 cm = 30cm
& b = 18+5 cm = 23cm
so, the area of the painting with wooden frame = l*b = 30*23 cm²
= 690cm²
so, the area of the wooden frame alone
= area of painting with frame - area of painting alone
= 690cm² - 450cm²
= 240cm²
(b) Total area of the decorated frame:
Cannot be determined , since you havent attached any figure of the decorated painting.
(c) Selling Price of the decorated wooden frame:
profit% = 25%
given, c.p = Rs.2500
=> profit = c.p*profit% = 2500*25/100 = 2500*(1/4) = Rs.625
=> selling price , sp = c.p + profit
= Rs.2500+Rs.625
= Rs.3125