**Hello Readers, You know that today our topic is**

**Profit & Loss : Free Study notes and PDF Download.**

**After our Maths Notes for Bank competitive exam in Hindi/English**

**PDF this profit and loss questions in Hindi PDF download**

**Cost Price (CP) :This is the price at which an article is purchased or manufactured.**

**Selling Price (SP): This is the price at which an article is sold.**

**Profit (SP>CP) :When an article is sold at a price more than its cost price, then profit is earned.**

**Loss (CP>SP) :When an article is sold at a price lower than its cost price, then loss in incurred.**

**Note : Profit and loss always calculated on cost price.**

__Some Important Concept__

**1. If a person sells two similar articles, one at a gain of a% and another at a loss of a%, then the seller always incurrs a loss which is**

**given by**

**Loss%=(a/10)^2 %**

**2. If a'th part of some items is sold at x% loss, then required gain per cent in selling rest of the items in order that there is neither gain nor**

**loss in whole transaction, is (ax)/(1-a)%**

**Example 1:**

**A medical store owner purchased medicines worth Rs. 6000 form a company. He sold 1/3 part of the medicine at 30% loss. On which gain he should**

**sell his rest of the medicines, so that he has neither gain or loss?**

**Here a = 1/3 , x = 30 %**

**Required gain % = (1/3*30)/(1-1/3) = 15 %**

**3. If cost price of 'a' articles is equal to the selling price of 'b' articles, then profit percentage**

**=(a-b)*100/b**

**4. If a dishonest trader professes to sell his items at CP but uses false weight, then**

**Gain %=Error*100/(True Value-Error)**

**Gain%=(True weight-False weight)/(False weight) X100%**

**Example 2:**

**A dishonest dealer professes to sell his goods at cost price but he uses a weight of 930 g for 1 kg weight. Find his gain per cent.**

**Gain % = 70*100/930**

**5.If a shopkeeper sells his goods at a% loss on cost price but uses b g instead of c g, then his profit or loss is [(100-a)(c/b)-100]% as sign**

**positive or negative**

**Example 3:**

**A dealer sells goods at 6% loss on cost price but uses 14 g instead of 16 g. What is his percentage profit or loss?**

**Here a = 6 % , b = 14 g and c = 16 g**

Required answer = [(100-6)(16/14)-100]% = 7(3/7) %

**6. If a dealer sells his goods at a% profit on cost price and uses b% less weight, then his percentage profit will be**

**(b+a)/(100-b)X100%**

**Example 4:**

**A dealer sells his goods at 20% loss on cost price but uses 40% less weight. What is his percentage profit or loss?**

Here a = 20 , b = 40

Required answer = (40 -20)*100/(100- 40) = 33(1/3) %

**7. If 'a' part of an article is sold at x% profit/loss, 'b' part at y% profit/loss and c part at z% profit/loss and finally there is a profit/loss**

**of Rs.R, then Cost price of entire article**

**=RS.(R*100)/(ax+by+cz)**

**Example 5:**

**If 2/3 part of an article is sold at 30% profit, 1/4 part at 16% profit and remaining part at 12% profit and finally, there is a profit of Rs.75,**

**then find the cost price of the article.**

Here a = 2/3 , x = 30 % , b =1/4 , y = 16 % , z = 12 % and R = 75 Rs

Required CP of article = (75*100)/(2/3*30+1/4*16+1/12*12) = 7500/25 = 300

Required CP of article = (75*100)/(2/3*30+1/4*16+1/12*12) = 7500/25 = 300

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