Mental Ability (NCO Cyber Olympiad Class 7): Questions 154  158 of 205
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Question number: 154
» Mental Ability » Basic Algebra
Question
Step 1:
Step 2:
Step 3:
Are the above given steps a simplification of algebraic expression
Choices
Choice (4)  Response  

a.  Only step 1 is correct 

b.  Only step 1 and 2 are correct 

c.  No 

d.  Yes 

Question number: 155
» Mental Ability » Basic Statistics
Question
Match the reciprocal of each of the following in exponential form:ListⅠ  ListⅡ 
(A)
 (i)

(B)
 (ii)

(C)
 (iii) 1 
(D)
 (iv)

Choices
Choice (4)  Response  

 
a. 


b. 


c. 


d. 


Question number: 156
» Mental Ability » Basic Geometry
Question
STU is an isosceles triangle with ST = SU and and SV is an altitude of a triangle STU, then
Choices
Choice (4)  Response  

a. 


b.  25° 

c.  55° 

d. 


Question number: 157
» Mental Ability » Basic Arithmetic
Question
The average age of 15 children in a class is 7 years. If the teacher’s age is included, the average age becomes 10 years. Find the teacher’s age.
Choices
Choice (4)  Response  

a.  55 

b.  42 

c.  35 

d.  45 

Question number: 158
» Mental Ability » Basic Arithmetic
Question
. If = 0.008, then will be ________
Choices
Choice (4)  Response  

a.  0.125 

b.  1 

c.  0.0625 

d.  0.20 
