SSC Practice Problem Solution

SSC Practice Problem Solution

In this post, we will discuss solution of SSC Practice Problem.

Question 1 

 The efficiency of (A + B) = 100/24 = (25/6)%  
 The efficiency of (A + B + C) = 100/8 = (25/2)%  
 The efficiency of C = 25/2 – 25/6 = (50/6)%  
 Hence, C can alone finish this job in = 100/(50/6) = 12 days
 Answer: 12 days option (1)

Question 2 

 Original price = Rs. 6000;  
 Price after discount = 6000 – 1200 = Rs. 4800;  
 Price after raising service contract = 4800 + 480 = Rs. 5280  
 Answer: Rs. 5280 option (2)

Question 3 

 Suppose the received money by A, B, and C is respectively 5x, 6x, and 9x.  
 5x = 450; => x = 90;  
 Hence, the total money = 20x = 20*90 = Rs. 1800;  
 Answer: Rs. 1800 option (2)  

Question 4

 Suppose the Cost price of the bag= Rs. x;  
 Hence, x + 0.15x = 230; => x = Rs. 200;  
 Selling price after selling on 20% = 200 + 20% of 200 = Rs. 240  
 Answer: Rs. 240 option (3)

Question 5 

 The required percentage = 3.5*100/7.5 = (140/3)%.  
 Answer: 46.66% option (1)  

Question 6 

 Distance travelled in one second = (36* 1000 meter)/(60 * 60 seconds); => 10 m  
 Answer: 10 m option (1)  

Question 7

 = (1 - √2 + (√2 - √3 + (√3 - √4 + ..... + (√15 - √16);  
 = 1-√16 = 1 – 4 = -3;  
 Answer: -3 option (1)  

Question 8

 Suppose the number of male employees = x; and the number of female employees = y;  
 5200*x + 4200*y = 5000*(x + y);  
 200x = 800y; =>x = 4y;  
 Hence, % of female employees = y*100/(x+y) = 100/5 = 20%.  
 Answer: 20% option (1)  

Question 9

 (105)3= (100 + 5)3;  
 = (100)3+ (5)3 + 3*100*5(100 + 5);  
 = 1000000 + 125 + 150000 + 7500;  
 = 1157625;  
 Answer: 1157625 option (1)  

Question 10

 only option (3.) follows the given condition because there product is equal to 2160 and HCF is 12.  
 Answer: (36, 60) option (3) 

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