C.P. of 60 kg mix = Rs. (25 x 6 + 35 x 7) = Rs. 395
S.P. of 60 kg mix = Rs. (60 x 6.75) = Rs. 405
Gain = Rs. (405 - 395) = Rs. 10
Let the selling price of the article = Rs. 100
? Profit = Rs. 26
? Cost price of the article = 100 - 26 = Rs. 74
? Required % = (34 x 74)/100 = 25.16%
S.P. = Rs. 1980, Gain = 10%
? C.P. = Rs. (100 / 110) x 1980 = Rs. 1800
C. P. of 10 articles = Rs. 8
S.P. of 10 articles = Rs. (1.25 x 10) = Rs. 12.50
? Gain = (4.5/8) x 100 % = 561/4%
S.P. = Rs. 100, Loss = Rs. 10
? C.P. = S.P. + Loss = Rs. 110
? Loss% = (10/110) x 100% = 91/11%
Let C.P. = Rs. x
? 425 - x = x - 355
? 2 x = 780
? x = 390
Suppose he sells x oranges
Then, C.P.of x oranges = Rs. 2x/3
S.P. of x oranges = Rs. x
Profit on x oranges = Rs. (x - 2x/3) = Rs. x/3
? x/3 = 10 ? x = 30
2 x + y = 7000 ....(i)
x + 2y = 4250 .....(ii)
Solving (i) and (ii) we get,
x = 3250
? Cost of T.V. set is Rs. 3250.
Let C.P.be Rs. x then, x - 270 = 10% of x = x / 10
? x = 300
Let original price = Rs. 100
Price after 1 st discount = Rs. 90
Price after 2 nd discount = Rs. (80/100) x 90 = Rs. 72
Price after 3 rd discount = Rs. (60/100) x 72 = Rs. 43.20
? Single equivalent discount = (100 - 43.20) = 56.8%
Let S.P. = Rs. 100
Then C.P. = Rs. 40
? Required percent = (100/40) x 100% = 250%
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