NRA CGL (National Recruitment AgencyCombined Graduate Level) Mathematics: Questions 12  19 of 425
Access detailed explanations (illustrated with images and videos) to 425 questions. Access all new questions we will add tracking exampattern and syllabus changes. Unlimited Access for Unlimited Time!
View Sample Explanation or View Features.
Rs. 300.00 or
How to register?
Question number: 12
Question
5 years ago, the ages (in years) of A and B were in the ratio 2: 3; and 5 years hence they will be in the ratio 4: 5. The present age of A is
Choices
Choice (4)  Response  

a.  15 years  
b.  63 years  
c.  26 years  
d.  48 years 
Question number: 13
» Geometry
Question
Three spherical balls of radius 3 cm, 4 cm and 5 cm are melted to form a single spherical ball. In the process, the loss of material is 50%. The radius of the new ball is
Choices
Choice (4)  Response  

a.  15 cm  
b.  10.4 cm  
c.  12.1 cm  
d.  7 cm 
Question number: 14
Question
Find the missing number for below series
Choices
Choice (4)  Response  

a.  48  
b.  6  
c.  26  
d.  176 
Question number: 15
» Algebra
Question
If then the value of will be
Choices
Choice (4)  Response  

a.  3  
b. 
 
c.  2  
d. 

Question number: 16
Question
Find the missing number for below series
Choices
Choice (4)  Response  

a.  7  
b.  9  
c.  10  
d.  6 
Question number: 17
» Algebra
Question
If , then the value of is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 18
» Geometry
Question
Three spherical balls of radius 2 cm, 4 cm and 6 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is
Choices
Choice (4)  Response  

a.  6 cm  
b.  5 cm  
c.  2 cm  
d.  3 cm 
Question number: 19
» Algebra
Question
is equal to
Choices
Choice (4)  Response  

a.  3.8  
b.  0.2  
c.  1.4  
d.  0.14 