When 3 passengers income was 3x
expense= Rs.60
profit =20% of 60 = Rs.12
that means his earning is Rs.72, so that per passenger fare must be Rs.24

When 4 passengers
earning = 24×4=Rs.96
expense =Rs.48
profit = Rs.48 = 100%

S.P = 75 % of CP
=> 75 x CP /100= 1500
=> CP = 2000
20 % of CP = (20/100) x 2000 = 400
SP = 2000 + 400 = 2400

When 3 passengers income was 3x
expense= Rs.30
profit =20% of 30 = Rs.6
That means his earning is Rs.36. so that per passenger fare must be Rs.12.
When 4 passengers
earning = 12×4=Rs.48.
expense =Rs.24.
profit = Rs.24 = 100%

Cost price of A = 1625*[(100*100*100)/(90*125*92)] = 1570

Let 1kg of Rs. 100 then 840gm is of Rs. 84.
Now (label on can 1kg but contains 840kg ) so for customer it is of Rs. 100 and further gives 4% discount [he sells his article on 4% loss on cost price.]
So now S.P = Rs. 96
But actually it contains 840 gm so C.P for shopkeeper = Rs. 84
S.P = Rs. 96
C.P = Rs. 84
Profit% = {(S.P-C.P)/C.P}x100
{(96-84)/84} x 100 = 14.28% PROFIT.

Cost price = Rs. 300, Selling price = 240 Rs.
Since S.P < C.P, there is some loss incurred.
Loss = C.P – S.P = 300 – 240 = 60
Loss % = loss/ C.P x 100 = 60/300 x 100 = 20%

CP of 80 Oranges = Rs.240
CP of 1 Orange = Rs.3
CP of 20 Oranges = Rs.60
120% of 240 = 288
SP of remaining 60 Oranges = 288 – 60 = 228
SP of 1 Orange = 228/60 = Rs.3.80

Income = Rs. 100
Expenditure = Rs. 80
Savings = Rs. 20
Present Expenditure 80x(15/100) = Rs. 12 = 80 + 12 = Rs. 92
Present Savings = 100 – 92 = Rs. 8
100 —— 8
? ——— 400 => 5000
His salary = Rs. 5000

Let CP = 100. SP = 132. This is after a discount of 12%, thus the marked price must be 132/0.88 = 150. Thus he is marking the product 50% above the cost price. Hence the profit will be 50%.

Let the marked price of the article be x.
First a 20% discount was offered, on which another 25% discount was offered.
So, after applying discounts, the customer paid 75% of 80% of marked price, which is equal to Selling price
=> 75% of 80% of x = 3600
=> (75/100) * (80/100) * x = 3600
=> x = 3600 * (5/3)
=> x = 6000
So, the marked price of the article = Rs. 6000
Formula:- Cost price of the article = {100 / (100 + Gain %)} * S.P
= [100/(100+80)]*3600
= [100 / 180] * 3600
= Rs. 2000

Total CP of Rice = 30 * 40 = 1200
40% of Total Quantity = 40% of 30 = 12
SP = 12*50 = 600
SP = 1200 * 125/100 = 1500
SP of Remaining Quantity = 1500 – 600 = 900
Remaining Quantity = 18kg
Rice per Kg = 900/18 = Rs. 50

Selling price of an article = Rs 500; Let the cost price of the article = x
Profit = Rs (500 – x)
Selling price of the article = Rs 225; Loss = Rs (x – 225)
⇒ (500 – x) = 10 (x – 225)
⇒ 500 – x = 10x – 2250
⇒ 11x = 2750
⇒ x = 250
The cost prise of the article = Rs 250; Profit = 30%
Selling price = 250 x (100 + 130) / 100 = 325