### Important Formulas - Profit and Loss

swapnil
2015-04-01 07:37:21
Guys else tell me the formulas of selling price,how to find cost price of one item & total profit
Ranjith
2015-03-12 17:25:21
By selling 15 dozen Bananas, a fruit seller lost an amount equal to the selling price of 20 bananas, find the loss percentage
2015-08-17 11:12:00
let the S.P of each banana be 1, then S.P of 180 bananas is 180
loss = S.P of 20 bananas = 20

we know loss = C.P - S.P , then C.P = S.P + loss
so CP of 180 bananas = 180 + 20 = 200
Loss percent = $\dfrac{\text{Loss}}{\text{CP}}×100=\dfrac{20}{200}×100$

after cutting it we will find the answer is 10% loss
long
2015-07-20 05:43:27
15*12-->180Rs
180----->180Rs
180----->160Rs (I.e loss of selling price of 20 bananas)
By Alligation Method:
180*180=32400 (C.P)
180*160=28800 (S.P)
-------
3600 (Loss)
(3600/32400)*100=11.11%loss
harsh
2015-07-05 01:45:53
180cp-180sp=20sp

180cp=200sp

20/180*100=11.11 % loss
Jay
2015-07-20 23:02:22
180cp=200sp .

suppose cost price of one article (cp) = 1
selling price of one article(sp) = 180/200 = 0.9
loss in selling one article = 0.1
loss = (0.1/1)*100 =10%

Last part of your calculation is wrong
Dev
2015-03-14 09:14:08
Let selling price of 1 banana be Rs.1

Selling price of 15 dozen Bananas = 15*12*1 = Rs.180
Loss = selling price of 20 bananas = Rs.20
Cost price of 15 dozen Bananas = 180+20 = Rs.200
Loss percentage = 20*100/200= 10%
Ranjith
2015-03-12 17:23:03
By selling 100 packets of biscuits, a shopkeeper gain an amount equal to the selling price of 20 packets. What is the profit Percentage?
Dev
2015-03-14 09:05:12
Let selling price of 1 packet is Rs.1

Then, selling price of 100 packets = Rs.100
Profit = selling price of 20 packets = Rs.20
Cost price = Rs.100- Rs.20 = Rs.80
Profit percentage = 20*100/80= 25%