Cost of the horse paid by A = (4860 x 100) / 81 = Rs. 6000
Cost of the horse paid by C = (6000 x 117) / 100 = Rs. 7020
Gain of B = Rs. 7020 - Rs. 4860 = Rs. 2160
Let the marked price be Rs. x
Then, (7% of x ) - 15 = 5% of x
? 7x / 100 - 5x / 100 = 15
? x = 750
? Loss = C.P. of 36 oranges - S.P. of 36 oranges
? S.P. of 4 = C.P. of 36 - S.P.of 36
? S.P.of 40 = C.P. of 36
Let C.P. of each oranges = Re. 1
? C.P.of 40 = Rs. 40
? S.P. of 40 = Rs. 36
? Loss = (4 / 40 ) x 100 % = 10%
? Gain = (S.P. of 8 dozen ) - (C.P. of 8 dozen )
? (S.P. of 1 dozen) = (S.P. of 8 dozen ) - (C.P. of 8 dozen)
? (C.P. of 8 dozen ) = (S.P. of 7 dozen)
Let C.P. of each dozen be Re. 1
? C.P. of 7 dozen = Rs. 7
? S.P. of 7 dozen = Rs. 8
? Gain % = (1 / 7 x 100)% = 142/7 %
? Profit is maximum when C.P. is minimum and S.P. is maximum
Thus, C.P. = Rs. (200 x 8) = Rs. 1600
S.P. = Rs. (425 x 8) = Rs. 3400
? Gain = Rs. 1800
S.P. = 90% of Rs. 200 = Rs. 180
Required S.P. = (95% of Rs. 180) Rs. 171
Let the C.P. be Rs. x
Then, S.P. when gain is 12% = 12x / 100
? 112x / 100 - 88x / 100 = 6
? 24x / 100 = 6
? x = 600 / 24 = Rs. 25
Let the original cost of each cooker be Re. 1 and let the number sold originally be 100.
Total sale proceeds = Rs. (100 x 1) = Rs. 100
New rate = (115% of Re. 1 ) = Rs . 1.15
Number sold now = 85
? Sale proceed now = Rs. (1.15 x 85) = Rs. 97.75
So, there is a decrease of 2.25% in the money receipt.
Let the S.P. be Rs. P
Then, C.P. paid by subhash = Rs. (9 x P)/10
S.P. received by subhash = (108% of Rs. P) = Rs. (27 x P) / 25
? Gain = Rs.(27 x P) / 25 - (9 x P) / 10 = Rs. (9 x P) / 50
Hence, Gain% = (9P / 50) x (10P / 9) x 100 % = 20%
? Gain = (S.P. of 100 bananas) - (C.P. of 100 bananas)
? (S.P.of 20) = (S.P of 100) - (C.P. of 100)
? S.P.of 80 = C.P. of 100
Let C.P. of each banana = Re. 1
C.P. of 80 banana = Rs. 80
S.P. of 80 banana = Rs. 100
? Gain % = (20 / 80) x 100 % = 25%
Suppose he buys 10 lemons
? C.P. = Rs. 10/2 = Rs. 5,
? S.P. = Rs. (3/5 x 10)% = Rs. 6
? Gain % = (1/5) x 100% = 20%
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