Let the CP = N
? Marked price of item = (N x 120)/100 = 6N/5
Then, SP of item = (6N/5) x (100 -10)/100 = 27N/25
Profit = (27N/25) - N = 2N/25
Profit % = [(2N/25) / N] x 100% = 8 %
Let the rate of second discount = r %
? 11400 = 16000 (1 - 5/100) (1 - r/100)
? (11400/16000) x (20/19) = 1 - r/100
? r = 100 x (1 - 0.75) = 25 %
Here, MP = ? 480 , r = 10 % and R = 8 %
? CP = MP x (100 - r)/(100 + R)
= 480 x (100 - 10)/(100 + 8) = (480 x 90)/108 = ? 400
? Profit = 480 - 400 = ? 80
Hence, profit percent = (80/400) x 100 % = 20 %
Here, CP = ? 800 , r = 10 % and R = 12.5 %
? Marked price (MP) = CP x (100 + R)/(100 - r)
= 800 x (100 + 12.5)/(100 - 10)
= (800 x 112.5)/90 = ? 1000
? Listed price of an article = ? 1500
? Price after first discount
= 1500 x (1 -20/100) = 1500 x 4/5 = ? 1200
Now, second discount = 1200 - 1104 = ? 96
Hence, required percentage = (96/1200) x 100 % = 8 %
Let MP of an article = ? N
? SP of an article = N x (100 - 40)/100 = ? 3N / 5
CP of an article = {(3N/5) x 100}/{100 - 30}
= (3N/5) x (100/70) = ? 6N/7.
? Profit when sold at MP = N - (6N/7) = ? N/7
Hence, profit per cent = [(N/7) / (6N/7)] x 100% = 50/3%
= 162/3%
Let MP of the shirt = ? N
According to the question,
[(9 - 7) x N] / 100 = 15
? N = (15 x 100) / 2 = ? 750
Given, r1 = 5 %, r2 = 6 %and earning = ? 15
Let marked price of the watch be ? N .
Then, (6 - 5) % of N = 15
? N = 15 x 100
? N = ? 1500
Here, r = 16% and R = 5%
? Required percentage
= [(r + R)/(100 - r)] x 100%
= [(16 + 5)/(100 - 16)] x 100% = 21 x 100/84% = 25 %
? MP of the article = ? 60
SP of the article = [60 x (100 - 15)]/100
= (60 x 85)/100 = ? 51
Thus, actual SP of the article = (51 - 3) = ? 48
Hence, CP of the article = (48 x 100)/(100 + 20)
= (48 x 100)/120
= ? 40
Here, r = 15% and R = 19%
? Requirement percentage = [(r + R) / (100 - r)] x 100%
= [(15 + 19) / (100 - 15)] x 100% = [(34 x 100) / 85 ] % = 40%
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