Mental AbilityBasic Arithmetic (NCO Cyber Olympiad (SOF) Class 9): Questions 1  8 of 49
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Question number: 1
» Mental Ability » Basic Arithmetic
Question
What is 5 % of 7/60?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2
» Mental Ability » Basic Arithmetic
Question
What is 40 % of 10/7?
Choices
Choice (4)  Response  

a.  11/28 

b.  2.7 

c.  10/28 

d.  4/7 

Question number: 3
» Mental Ability » Basic Arithmetic
Question
What is 25 % of 1/7?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 4
» Mental Ability » Basic Arithmetic
Question
In a family, the father took of the cake and he had 5 times as much as each of the other members had. The total number of family member is ________
Choices
Choice (4)  Response  

a.  9 

b.  2 

c.  3 

d.  7 

Question number: 5
» Mental Ability » Basic Arithmetic
Question
The bacteria in a culture grows by in the first hour, decreases by in the second hour and again increases by in the third hour. If at the end of the third hour the count of bacteria is 9000. The original count of bacteria in the sample is________
Choices
Choice (4)  Response  

a.  11956 

b.  11286 

c.  11784 

d.  11458 

Question number: 6
» Mental Ability » Basic Arithmetic
Question
A bike travels 70 km from Rajkot to Jamnagar at 14 km per hour but returns the same distance at 15 km per hour. The average speed for the round trip is closest to
Choices
Choice (4)  Response  

a.  13 km/hr 

b.  10km/hr 

c.  16km/hr 

d.  12km/hr 

Question number: 7
» Mental Ability » Basic Arithmetic
Question
Only if
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 8
» Mental Ability » Basic Arithmetic
Question
The bacteria in a culture grows by in the first hour, decreases by in the second hour and again increases by in the third hour. If at the end of the third hour the count of bacteria is 14000. The original count of bacteria in the sample is________
Choices
Choice (4)  Response  

a.  20199 

b.  17199 

c.  18199 

d.  19199 
