NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 202  208 of 1484
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Question number: 202
» Mathematics » Arithmetic Progressions
Question
The sum of all two digit natural numbers is
Choices
Choice (4)  Response  

a.  4509 

b.  4905 

c.  4590 

d.  4950 

Question number: 203
» Mathematics » Arithmetic Progressions
Question
In a geometric series of positive terms the difference between the fifth and fourth terms is 224 and the difference between the second and first terms is 28. What is the sum of the first five terms of the series?
Choices
Choice (4)  Response  

a.  862 

b.  686 

c.  434 

d.  868 

Question number: 204
Question
The reciprocal of is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 205
» Mathematics » Arithmetic Progressions
Question
If 5, , are in AP, then k must be equal to
Choices
Choice (4)  Response  

a. 


b. 


c.  0 

d. 


Question number: 206
» Mathematics » Surface Area and Volumes
Question
A vessel is in conical shape. If its volume is 33.264 liters and height is 18 cm, the cost of repairing its CSA at Rs. 6/sq m is
Choices
Choice (4)  Response  

a.  8.54 

b.  7.34 

c.  3.62 

d.  3.12 

Question number: 207
» Mathematics » Surface Area and Volumes
Question
A cylindrical vessel of diameter 14 cm has some water in it. A cylindrical iron piece of diameter 28 cm and height 7 cm is dropped in it. After it was completely immersed, the raise in the level of water is ________.
Choices
Choice (4)  Response  

a.  14 cm 

b.  7 cm 

c.  18 cm 

d.  28 cm 

Question number: 208
» Mathematics » Surface Area and Volumes
Question
The base radius of a cylinder is times its height. The cost of painting its CSA at is Rs. 21.56. The volume of the liquid is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

