1.
Praveen purchases toffees at Rs. 10 per dozen and sells then at Rs. 12 for every 10 toffees: Find the gain(or) loss percentage.
 A.52
 C.41
 B.36
 D.44
 Answer & Explanation
 Report
Answer : [D]
Explanation :
Explanation :
Cost Price = Rs. 10/12, Selling Price = Rs. 12/10  


So, profit percentage = 44 per cent  
Alternative method:  
Assume that he buys 120 toffees.  
Praveen spends Rs. 100 

Revenue generated = Rs. 144 

Hence, profit percentage = 44 per cent  
2.
A trader purchased 15 articles. He sold some of them to a first customer at a gain of 4% and the remaining to another customer at a gain of 7%. If he gains 5% on the whole, how many articles did he sell to first customer?
 A.7
 C.10
 B.9
 D.13
 Answer & Explanation
 Report
Answer : [C]
Explanation :
Explanation :
Let the trader have sold x articles to the first customer at 4% gain.  






3.
A manufacturer sells an article to a wholesale dealer at a profit of 20% and the wholesale dealer sells it to a retail merchant at a loss of 5%. Find the resultant profit or loss.
 A.14% loss
 C.12% gain
 B.14% gain
 D.None of these
 Answer & Explanation
 Report
Answer : [B]
Explanation :
Explanation :
Here, m = 20, n = 5  






4.
Mr. Krishnan purchases eggs at the rate of Rs. 100 per gross and sells them at the rate of Rs. 75 per hundred. What is his profit percentage?
 A.4%
 C.1.8%
 B.3.5
 D.2
 Answer & Explanation
 Report
Answer : [D]
Explanation :
Explanation :
Cost Price = Rs. 100 for 144 = Rs. (100/144) per egg  
Selling Price = Rs. 75 for 100 = Rs. (75/100) each.  


Hence, Profit percentage = 8%  
This is also a fast approach to solving these problems.  
Say if the SP is 0.98 times CP it implies that the loss is 2%  
5.
A machine is sold at a profit of 10%. Had it been sold for Rs 40 less, there would have been a loss of 10%. What was the cost price?
 A.Rs 175
 C.Rs 225
 B.Rs 200
 D.Rs 250
 Answer & Explanation
 Report
Answer : [B]
Explanation :
Explanation :
Let the C.P. be Rs k  









