NRA CGL (National Recruitment AgencyCombined Graduate Level) Mathematics: Questions 386  391 of 425
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Question number: 386
Question
LCM of 0.22,0.2 and 1.2 is
Choices
Choice (4)  Response  

a.  14.2  
b. 
 
c.  18.4  
d.  12.1 
Question number: 387
Question
Simplify:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  5  
d.  3 
Question number: 388
» Average
Question
Out of 21 persons, 20 persons spent Rs. 30 each for their meals. The 21^{th} one spent Rs. 30 more than the average expenditure of all the other. The total money spent by all of them was (in Rs)
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  300.8  
d. 

Question number: 389
Question
A person divides his total distance of journey into three equal and decides to travel the three parts with speeds of 12,16 and 20 km/hr. find his average speed. (In km/hr)
Choices
Choice (4)  Response  

a.  26.78  
b. 
 
c.  28.25  
d. 

Question number: 390
» Average
Question
In a school with 500 students, the average age of boys is 11 years and that of the girls is 10 years and 2 months. If the average age of the school is 10 years and 5 months, then the number of the girls in the school is
Choices
Choice (4)  Response  

a.  300  
b.  460  
c.  660  
d.  490 
Question number: 391
» Average
Question
Out of 20 persons, 19 persons spent Rs. 22 each for their meals. The 20^{th} one spent Rs. 19 more than the average expenditure of all the other. The total money spent by all of them was (in Rs)
Choices
Choice (4)  Response  

a.  300  
b.  660  
c.  460  
d.  490 