Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 7]: Questions 579  586 of 1128
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Question number: 579
» Mathematics » Triangle and Properties
Question
If the two sides of a rightangled triangle are equal and the square of the hypotenuse is 288 cm then the length of each side is
Choices
Choice (4)  Response  

a.  15 cm  
b.  12 cm  
c.  cm  
d.  10.5 cm 
Question number: 580
» Mathematics » Algebraic Expressions
Question
Value of x in
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 581
» Mathematics » Algebraic Expressions
Question
Algebraic expression for the statement: ‘21 times x taken away from 89’.
Choices
Choice (4)  Response  

a. 
 
b.  0  
c. 
 
d. 

Question number: 582
» Mathematics » Triangle and Properties
Question
In , S is midpoint of QR and G is the Centroid of the triangle. If GS = 5 cm, then the length of PS is
Choices
Choice (4)  Response  

a.  15 cm  
b.  5 cm  
c.  10 cm  
d.  None of the above 
Question number: 583
» Mathematics » Comparing Quantities
Question
Komal borrowed Rs. 1500 at 3 % per annum for 2 years and Sonal borrowed Rs. 1800 at 2 % per annum for 3 years. Then the ratio of interests paid by them is
Choices
Choice (4)  Response  

a.  6: 5  
b.  5: 6  
c.  5: 3  
d.  3: 5 
Question number: 584
» Mathematics » Rational Numbers
Question
Out of the rational number , , , which is smaller?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  All of the above 
Question number: 585
» Mathematics » Perimeter and Area
Question
If the area of a circle is 2A, radius of the circle is r and circumference of it is 3C, then
Choices
Choice (4)  Response  

a.  AC =  
b. 
 
c. 
 
d. 

Question number: 586
» Mathematics » Rational Numbers
Question
For any two rational numbers a and b, which of the following properties are correct?
(I) (II) (III)
Choices
Choice (4)  Response  

a.  Only (II) is correct  
b.  Only (II) and (III) are correct  
c.  Only (I) and (II) are correct  
d.  All (I), (II) and (III) are correct 