NCO Cyber Olympiad (SOF) Class 9: Questions 28  33 of 520
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Question number: 28
» 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.  19199 

b.  20199 

c.  17199 

d.  18199 

Question number: 29
» Mental Ability » Basic Arithmetic
Question
The ratio of the ages of Mayuri and Mayur is 4: 3. The sum of their ages is 28 years. The ratio of their ages after 8 years will be:
Choices
Choice (4)  Response  

a.  6: 5 

b.  12: 17 

c.  4: 7 

d.  7: 4 

Question number: 30
» Mental Ability » Days and Dates
Question
If seventh day of a month is three days earlier than Friday, what day will it be on nineteenth day of the month?
Choices
Choice (4)  Response  

a.  Wednesday 

b.  Monday 

c.  Sunday 

d.  Friday 

Question number: 31
» Mental Ability » Basic Arithmetic
Question
In a family, the father took of the cake and he had 3 times as much as each of the other members had. The total number of family member is ________
Choices
Choice (4)  Response  

a.  3 

b.  10 

c.  7 

d.  12 

Question number: 32
» Mental Ability » Basic Arithmetic
Question
Only if
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 33
» Non Verbal Reasoning » Identifying and Counting Geometrical Shapes and Solids
Question
I travelled eastward 15km and another 10km southward. I turned westward and moved 10 km and again another 10 km southward. A travel of another 5 km westward and then 20 km northward ended my journey. Identify the sketch depicting my journey.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
