Mental AbilityBasic Arithmetic (NCO Cyber Olympiad (SOF) Class 7): Questions 55  61 of 122
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Question number: 55
» Mental Ability » Basic Arithmetic
Question
A train 600 meters long is running at a speed of If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is.
Choices
Choice (4)  Response  

a.  500 

b.  130 

c.  300 

d.  360 

Question number: 56
» Mental Ability » Basic Arithmetic
Question
A cistern can be filled by two tapes A and B in 5 hours and 8 hours respectively. How much time will the cistern be filled up completely?
Choices
Choice (4)  Response  

a.  3.08 hours 

b.  24 hours 

c.  48 hours 

d.  3.6 hours 

Question number: 57
» Mental Ability » Basic Arithmetic
Question
8 children and 12 men completed a certain piece of work in 9 days. Each children takes twice the time taken by a man to finish the work. In how many days will 12 men finish the same work?
Choices
Choice (4)  Response  

a.  9 

b.  12 

c.  8 

d.  15 

Question number: 58
» Mental Ability » Basic Arithmetic
Question
The value of is
Choices
Choice (4)  Response  

a.  2.30 

b.  0.399 

c.  1.20 

d.  1.00 

Question number: 59
» Mental Ability » Basic Arithmetic
Question
Find the value of in each of the following equations
Choices
Choice (4)  Response  

a.  5.40 

b.  3.60 

c.  0.61 

d.  1.62 

Question number: 60
» Mental Ability » Basic Arithmetic
Question
Which of the following can be the exact multiple of 6?
Choices
Choice (4)  Response  

a.  63 

b.  7 

c.  252 

d.  28 

Question number: 61
» Mental Ability » Basic Arithmetic
Question
The product of two numbers is . If one of the number is , find the other.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

