NRA CGL (National Recruitment AgencyCombined Graduate Level) Mathematics: Questions 342  347 of 425
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Question number: 342
Question
The difference between two positive numbers is 5. If the sum of their squares is 625, then the sum of the numbers is (Paper1)
Choices
Choice (4)  Response  

a.  68  
b.  18  
c.  35  
d.  73 
Question number: 343
Question
A person buys certain number of marbles at 10 per rupee and equal number at 40 per rupee. He mixes them and sells them at 10 per rupee. His gain or loss in the transaction is (Paper  I)
Choices
Choice (4)  Response  

a.  50 % loss  
b.  74 % gain  
c.  45 % gain  
d.  48 % loss 
Question number: 344
» Average
Question
The average weight of 7 persons decreases by 3 kg when one of them weighing 90 kg is replaced by a new person. The weight (in kg) of the new person is (Paper  I)
Choices
Choice (4)  Response  

a.  60  
b.  79  
c.  69  
d.  74 
Question number: 345
Question
If a selling price of Rs. 44 results after 80 % discount on the list price of an article, the selling price that would result after 50 % discount on the list price is (Paper  I)
Choices
Choice (4)  Response  

a.  Rs. 66  
b.  Rs. 44  
c.  Rs. 55  
d.  Rs. 77 
Question number: 346
» Fundamental Arithmetical Operations
Question
is equal to (Paper1)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 347
» Average
Question
A cricketer has a certain average of runs for his 11 innings. In the 12 inning he scores 100 runs, thereby increasing his average by 6 runs. His new average of runs is (Paper I)
Choices
Choice (4)  Response  

a.  24  
b.  34  
c.  28  
d.  30 