Hello and welcome to exampundit. Here is a set of Quantitative Aptitude Quiz on Profit & Loss for Prelims exam of SBI Clerk 2018.  
  1. Aman bought chocho at 6 for a rupee. How many for a rupee must he sell to gain 20%?
(1) 3 (2) 4 (3) 5 (4) 6 [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 3 Explanation: 6 * 100= x * 120    Now, x= 5 [/su_spoiler]  
  1. A man sold two dogs at Rs. 1995 each. On one he lost 15% and on the other he gained 15%. What his gain or loss %?
(1)1.25 (2) 2.25 (3) 2.65 (4) 2.45   [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: 15 * 15= 225 Loss %= 225/100= 2.25 [/su_spoiler]    
  1. Soumi purchased 13 chair of Rs. 115 each and sold all at Rs. 1220. Then find the profit or loss on the transaction-
(1) Rs. 280 loss (2) Rs. 275 loss (3) Rs. 325 profit (4) Rs. 350 profit [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: Total SP given= Rs. 1220 Total CP of 13 chairs = Rs. 13 * 115= Rs. 1495 Hence, CP>SP     Loss= CP-SP = Rs. 1495- 1220= Rs. 275 [/su_spoiler]      
  1. A flower seller sells 3/5 th part of rose at a profit of 10% and remaining at a loss of 5%. If the total profit is Rs. 1500 then what is the total cost price of rose?
(1) Rs. 37500 (2) Rs. 37000 (3) Rs. 36500 (4) Rs. 36000 [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 1 Explanation: he sold 3/5th part at 10% profit and remaining 2/5th part at 5% loss Total profit= Rs. 1500 1500= (3/5 * CP* 10/100) – ( 2/5* CP *5/100) On solving equation total CP= rs. 37500 [/su_spoiler]      
  1. If Rohini sells an article to Kajol at 10% gain, while Kajol sells it to Rani at 20% gain at Rs. 1914 then what is the cost price?
(1) Rs. 1450 (2) Rs. 1340 (3) Rs. 1560 (4) Rs. 1780 [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 1 Explanation: Rohini            kajol           Rani 100-----------110--------132     [ 105 gain on 100= 110 ;  205 gain on 110= 132] CP= Rs. [100/132 * 1914 ] = Rs. 1450 [/su_spoiler]      
  1. If selling of an article’s unit is decreased by 60% then there is 10% loss on the cost price. What was the initial profit %?
(1)115% (2) 130% (3) 135% (4) 125% [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 4 Explanation: Assume Sp=100 Reduce 60% on 100 =40 10% loss on cp means= 40×(100/90)    =400/9  = original cp price. Profit = (sp-cp)/cp 100-400/9 = {(500/9)÷(400/9)} ×100=125 [/su_spoiler]    
  1. A dishonest merchant sells his grocery using weights 15% less than the true weights and makes a profit of 20%. Find his total gain percentage.
(1)  12.15% (2)   41.75% (3) 41.17% (4)  40.72% [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 3 Explanation: Let us consider 1 kg of grocery bag. Its actual weight is 85% of 1000          gm = 850 gm. Let the cost price of each gram be Re. 1. Then the CP of each bag = Rs. 850. SP of 1 kg of bag = 120% of the true CP Therefore, SP = 120/100 * 1000 = Rs. 1200 Gain = 1200 – 850 = 350 Hence Gain % = 350/850 * 100 = 41.17% [/su_spoiler]    
  1. A shopkeeper offers a discount of 20% on the selling price. On a special sale day, he offers an extra 25% off coupon after the first discount. If the article was sold for Rs. 3600, Find The cost price if the shopkeeper still makes a profit of 80% on the whole after all discounts are applied.
(1) Rs. 2000 (2) Rs. 3000 (3) Rs. 4000 (4) Rs. 5000 [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 1 Explanation: Let the marked price of the article be x. First a 20% discount was offered, on which another 25% discount was offered. So, 75% of 80% of x = 3600 75/100 * 80/100 * x = 3600 → x = 6000. So the article was marked at Rs. 6000. Cost price of the article = [100/(100+80)]*3600 = Rs. 2000. [/su_spoiler]      
  1. 100 oranges are bought at the rate of Rs. 350 and sold at the rate of Rs. 48 per dozen. The percentage of profit or loss is:
(1) 14 2/7% gain (2) 15% gain (3) 14 2/7% loss (4) 15 % loss [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 1 Explanation: C.P. of 1 orange = Rs.350/100 = Rs. 3.50 S.P. of 1 orange = Rs.48/12 = Rs. 4 Gain% = (0.50/3.50 x 100)% = 100/7 % = 14 2/7% [/su_spoiler]    
  1. In a transaction, the profit percentage is 80% of the cost. If the cost further increases by 20% but the selling price remains the same, how much is the decrease in profit percentage?
(1) 20% (2) 30% (3) 40% (4) 50% [su_spoiler title="Answer & Solutions" style="fancy" icon="arrow-circle-1"] Option: 2 Explanation: Let us assume CP = Rs. 100. Then Profit = Rs. 80 and selling price = Rs. 180. The cost increases by 20% → New CP = Rs. 120, SP = Rs. 180. Profit % = 60/120 * 100 = 50%. Therefore, Profit decreases by 30%. [/su_spoiler]   Regards Team Exampundit