NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 387  393 of 1484
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Question number: 387
» Mathematics » Arithmetic Progressions
Question
The 5^{th} term of an AP is 20 and the 13^{th} term is 196. Then the fourth term is
Choices
Choice (4)  Response  

a.  3  
b.  2  
c.  5  
d.  21 
Question number: 388
Question
The expression leaves a remainder 3 and 7 when divided by and repsectively. Calculate the values of a and b.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 389
» Mathematics » Arithmetic Progressions
Question
A man saves Rs. 80 in a certain year and in each year thereafter he saves Rs. 20 more than the preceding year. In how many years will his total savings amount to Rs. 3,680?
Choices
Choice (4)  Response  

a.  15 years  
b.  16 years  
c.  27 years  
d.  23 years 
Question number: 390
» Mathematics » Surface Area and Volumes
Question
The diameter of a copper sphere is 6 cm. It is beaten and drawn into a wire of diameter 0.2 cm. The length of wire is ________.
Choices
Choice (4)  Response  

a.  3000 cm  
b.  6000 cm  
c.  1800 cm  
d.  3600 cm 
Question number: 391
Question
= ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 392
» Mathematics » Coordinate Geometry
Question
If and are the midpoints of the sides of , the area of the triangle is ________.
Choices
Choice (4)  Response  

a.  55 sq units  
b.  110 sq units  
c.  12 sq units  
d.  27.5 sq units 
Question number: 393
Question
What should be subtracted from to get ?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
