NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 675  678 of 1484
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Question number: 675
» Mathematics » Quadratic Equations
Question
If one root of is twice the other root, then the value of ‘a’ is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 676
Question
A card is drawn from a packet of 50 cards numbered 1 to 50. The probability of drawing a number which is a square is
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Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 677
Question
The length of shadow of a tower is times that of its length. The angle of elevation of the sun is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  All of the above 
Question number: 678
» Mathematics » Triangles
Question
In the figure, , D and E are midpoints of AB and BC and . Then ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
