Question

A certain number of articles are bought at Rs 450 per dozen and all of them are sold at a profit if 20% . find the s.p. of,2 seven article find it
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Answer 1

Answer:

C.P. of 1 dozen articles = Rs. 450

Profit = 20%

∴ S.P. = {C.P. × (100 + Profit)}/100

= Rs. {450 × (100 + 20)}/100

= Rs. (450 × 120)/100

= Rs. 540

(i) ∴ S.P. of 1 article = Rs.540/12 = Rs.45

(ii) S.P. of 7 articles = Rs. 45 × 7 = Rs. 315

Answer 2

S.P = [C.P x (100 + profit%)]/100

⇒ [450 x (100+20)]/100

⇒ 450 x 120/100

⇒ 45 x 12

⇒ ₹ 540

Selling price of 12 articles = ₹ 540.

(¡) S.P of 1 article = 540/12

⇒ ₹ 45

(¡¡) S.P of Seven articles = 45 x 7

⇒ ₹ 315