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			Profit and Loss Questions And Answers.  
		 
  		   
          
		   
		       Exercise ::
		       Profit and Loss  
		   
		    
1. Alfred buys an old scooter for Rs. 4700 and spends Rs. 800 on its repairs. If he sells the scooter for Rs. 5800, his gain percent is?  
		 
		A.  4 [4/ 7]% B.  5 [5/ 11] C.  10% D.  12% 
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			   Answer:   Option  B  
			  
		    
Explanation:  
			 
		    
		 
			  Cost Price (C.P.) = Rs. (4700 + 800) = Rs. 5500.
Selling Price (S.P.) = Rs. 5800.
Gain = (S.P.) - (C.P.) = Rs.(5800 - 5500) = Rs. 300.
Gain % = 
( 
300 
x 100 
)% 
= 5 
5 
% 
 
5500 
11 
 
 
  
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			Published by:Michael Daani  
		 2. The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is?  
		 
		A.  15 B.  16 C.  18 D.  25 
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			   Answer:   Option  B  
			  
		    
Explanation:  
			 
		    
		 
			  Let C.P. of each article be Re. 1 C.P. of x  articles = Rs. x .
S.P. of x  articles = Rs. 20.
Profit = Rs. (20 - x ).
∴  
( 
20 - x  
x 100 = 25 
) 
 
x  
 
 
  2000 - 100x  = 25x 
125x  = 2000
  x  = 16.
  
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		 3. If selling price is doubled, the profit triples. Find the profit percent.  
		 
		A.  66 [2/3] B.  100 C.  105 [1/3] D.  120 
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			   Answer:   Option  B  
			  
		    
Explanation:  
			 
		    
		 
			  Let C.P. be Rs. x  and S.P. be Rs. y .
Then, 3(y  - x ) = (2y  - x )   → y  = 2x .
Profit = Rs. (y  - x ) = Rs. (2x  - x ) = Rs. x .
∴ Profit % = 
( 
x  
x 100 
)% = 100% 
 
x  
 
 
  
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			Published by:Michael Daani  
		 4. In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?  
		 
		A.  30% B.  70% C.  100% D.  250% 
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			   Answer:   Option  B  
			  
		    
Explanation:  
			 
		    
		 
			  Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420.
New C.P. = 125% of Rs. 100 = Rs. 125
New S.P. = Rs. 420.
Profit = Rs. (420 - 125) = Rs. 295.
∴ Required percentage = 
( 
295 
x 100 
)% 
= 
1475 
% = 70% (approximately). 
 
420 
21 
 
 
  
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			Published by:Michael Daani  
		 5. A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?  
		 
		A.  3 B.  4 C.  5 D.  6 
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			   Answer:   Option  C  
			  
		    
Explanation:  
			 
		    
		 
			  C.P. of 6 toffees = Re. 1
S.P. of 6 toffees = 120% of Re. 1 = Rs. 
6 
 
5 
 
 
For Rs. 
6 
, toffees sold = 6. 
 
5 
 
 
For Re. 1, toffees sold = 
( 
6 x 
5 
) 
= 5. 
 
6 
 
 
  
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			Published by:Michael Daani