Mental Ability (NCO Cyber Olympiad Class 9): Questions 126  132 of 219
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Question number: 126
» Mental Ability » Basic Algebra
Question
What is equivalent to ?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  10abc 
Question number: 127
» Mental Ability » Ranking Test
Question
Avinash is Ravi’s eldest brother. Ravi is younger than Ajay. Ravi and Ajay are not brothers. Which of the following statements is definitely true?
Choices
Choice (4)  Response  

a.  Ajay is younger than Avinash  
b.  Avinash is younger than Ajay  
c.  Ajay is younger than Ravi  
d.  None of the above 
Question number: 128
» Mental Ability » Basic Algebra
Question
If , find the value of
Choices
Choice (4)  Response  

a.  322  
b.  324  
c.  323  
d.  325 
Question number: 129
» Mental Ability » Basic Arithmetic
Question
Given , , and find the value of the following expression correct up to three places of decimal: .
Choices
Choice (4)  Response  

a.  17  
b.  12  
c.  10  
d.  30 
Question number: 130
» Mental Ability » Basic Algebra
Question
is a factorization product of
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 131
» Mental Ability » Basic Arithmetic
Question
Divide 45 among four parts such that 2 added to first part, 2 subtracted from second part, third multiplied by 2 and the fourth divided by2 are all equal.
Choices
Choice (4)  Response  

a.  5, 8, 12, 20  
b.  8, 12, 5, 20  
c.  12, 8, 5, 20  
d.  20, 5, 8, 12 
Question number: 132
» Mental Ability » Basic Algebra
Question
Arpna cut a cake in two equal parts and one of these two pieces is again cut into equal parts. Each small part is of 20 grams. If there are seven parts of the whole cake, what was the weight of the original cake?
Choices
Choice (4)  Response  

a.  280 grams  
b.  240 grams  
c.  120 grams  
d.  140 grams 