Mental AbilityBasic Arithmetic (NCO Cyber Olympiad (SOF) Class 7): Questions 69  76 of 122
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Question number: 69
» Mental Ability » Basic Arithmetic
Question
Find the value of from the equation
Choices
Choice (4)  Response  

a.  15.5 

b.  12 

c.  13.3 

d.  14 

Question number: 70
» Mental Ability » Basic Arithmetic
Question
A shopkeeper declares a sale of computer books, giving 25 % discount. If the net sale price of a book is rupees 714, what is its market price?
Choices
Choice (4)  Response  

a.  500 Rs 

b.  550 Rs 

c.  952 Rs 

d.  1008 Rs 

Question number: 71
» Mental Ability » Basic Arithmetic
Question
The present ages of three persons in proportions 3: 6: 9. Eight years ago, the sum of their ages was 66. Find their present ages (in years).
Choices
Choice (4)  Response  

a.  16,28,26 

b.  8,20,28 

c.  15,30,45 

d.  None of the above 

Question number: 72
» Mental Ability » Basic Arithmetic
Question
A shopkeeper declares a sale of sarees, giving 20 % discount. If the net sale price of a saree is rupees 1000, what is its market price?
Choices
Choice (4)  Response  

a.  500 Rs. 

b.  952 Rs 

c.  550 Rs. 

d.  1120 Rs 

Question number: 73
» Mental Ability » Basic Arithmetic
Question
The product of two numbers is . If one of the number is , fined the other.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 74
» Mental Ability » Basic Arithmetic
Question
The value of is
Choices
Choice (4)  Response  

a.  60 

b.  40 

c.  20 

d.  30 

Question number: 75
» Mental Ability » Basic Arithmetic
Question
Which is lowest in
Choices
Choice (4)  Response  

a. 


b.  0.9 

c. 


d.  All of the above 

Question number: 76
» Mental Ability » Basic Arithmetic
Question
If the area of a triangle with base z is equal to the volume of a cube with edge z, then the altitude of the triangle is
Choices
Choice (4)  Response  

a.  z 

b.  3z 

c. 


d. 

