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 %
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
Let MP of the shirt = ? N
According to the question,
[(9 - 7) x N] / 100 = 15
? N = (15 x 100) / 2 = ? 750
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 %
? 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%
Here, r = 30% and r1 = 10%
? Profit per cent = [{r x (100 - r1)}/100] - r1
= [30 x (100 - 10)/100] - 10
= [30 x 90/100] - 10
= 27 -10 = 17%
Let the marked price of book = ? N
Selling price after 10% discount = 90N/100 = ? 9N/10
Profit = 20%
? Cost price of book = (9N/10) x (100N/120) = ? 3N/4
Hence, required ratio = 3N/4 : N = 3 : 4
Here, r = 50% and r1 = 30%
? Gain per cent = [r(100 - r1)/100] - r1
= [50 x (100 - 30)/100] - 30
= 35 - 30 = 5%
Comments
There are no comments.Copyright ©CuriousTab. All rights reserved.