CP of A + B + c = 2xy + 5x*2y - 2x*4y = 20xy
profit of A = 0.2xy
profit of B = 2xy
profit of C = 2xy
Total profit = 4.2xy
% profit = (4.2xy / 20xy) X 100 = 21%
Let the price be y , then
y x 0.8 x 0.9 = 468
? x=650, therefore marked price = Rs. 650
Alternatively : 650 X 0.8 X 0.2 = 468
Hence option (d) is correct
Let the original price be 100 Rs.
So reduced price = 100 X 0.95 X 0.90 X 0.80 = 68.40
? Single discount = (100 ? 68.4) % = 31.6%
Gain = 10% of 3,00,000 = 30000
Loss = 20% of 1,00,000 = 20000
Net gain = 10000 over Rs.4 lakh
Hence, profit = 10000/400000 x 100 = 2.5%
You can go through options.
CP = 100 / 6 = 16.66 paisa
SP = 100 / 5 = 20 paisa
Profit (%) = [( 20 - 16.66 ) / 16.66 ] X 100
= [ 3.33 /16.66 ] X 100
= ( 1 / 5 ) X 100 = 20%
Hence, option (c) is correct.
Alternatively:
CP = 100 / 6
SP = ( 100 / 6 ) X 1.2 = 100 / 5
Hence, he should sell 5 toffees for Re. 1 (100 paisa)
Selling price after 10 % loss = 200 - 10% = 180
Selling price after additional 5% loss = 180 - 5% = 171
Go through option C
180 x 12 x 1.2 + 180 x 8 x 1.1 = 180 [ 14.4 + 8.8 ]
= 180 (23.2) = 4176
And 180 x 20 x 1.15 = 4140
Therefore loss = 4176 - 4140 = 36
Hence option (c) is correct
CP / SP = 29x / 19x
loss % = 29x - 19x / 29x X 100 = 34.48 %
(To understand the concept assume CP of each article Rs 29 and SP of each article = Rs. 19)
Loss % = ( common gain or loss / 10 )2 %
= (20 / 10)2 %
= 4%
Loss % = ( common gain or loss / 10 )2 %
= (20 / 10)2 %
= 4%
Now assume total CP of both articles be x, then SP = 0.96x = 400
x = 400 / 0.96 = CP
loss = 4% of CP
= (4 / 100) X (400 / 0.96) = Rs. 16.66
Its simple i.e. 25% nothing else, which is very obvious
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