Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 841  847 of 989
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Question number: 841
Question
MCQ▾When two dice are thrown, the probability of getting a number always greater than 3 on the second dice is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 842
Question
MCQ▾The mean of 20 numbers is 40. If 2 is added to each of the first ten numbers, then the mean of the new set of 20 numbers is
Choices
Choice (4)  Response  

a.  41  
b.  35.5  
c.  21  
d.  20.5 
Question number: 843
Question
MCQ▾The length of the hypotenuse of a right angled triangle whose two sides measure 8 cm and 0.15 m is
Choices
Choice (4)  Response  

a.  8.15 cm  
b.  0.23 cm  
c.  17 cm  
d.  15 cm 
Question number: 844
Question
MCQ▾An isosceles triangle can be obtuse angled.
Choices
Choice (4)  Response  

a.  True  
b.  Cannot be determined  
c.  False  
d.  None of the above 
Question number: 845
Question
MCQ▾A hemispherical bowl is made of steel of 0.2 cm thickness. The inner radius of the bowl is 15 cm. The volume of steel used is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 846
Question
MCQ▾The ascending order of the following surds is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 847
Question
MCQ▾A cylindrical vessel of diameter 18 cm has some water in it. A cylindrical iron piece of diameter 6 cm and height 3 cm is dropped in it. After it was completely immersed, the raise in the level of water is ________.
Choices
Choice (4)  Response  

a.  3 cm  
b.  0.33 cm  
c.  0.66 cm  
d.  9 cm 