Mental Ability (NCO Cyber Olympiad Class 6): Questions 289  295 of 394
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Question number: 289
» Mental Ability » Basic Arithmetic
Question
If k = 8 and l = 16, then
Choices
Choice (4)  Response  

a. 


b. 


c.  36 

d.  18 

Question number: 290
» Mental Ability » Basic Arithmetic
Question
The greatest common factor of 8, 12 and 20 is
Choices
Choice (4)  Response  

a.  4 

b.  6 

c.  8 

d.  16 

Question number: 291
» Mental Ability » Basic Arithmetic
Question
Which of the following is the prime factorization of 50?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 292
» Mental Ability » Basic Arithmetic
Question
shows the prime factorization of which number?
Choices
Choice (4)  Response  

a.  115 

b.  132 

c.  312 

d.  231 

Question number: 293
» Mental Ability » Basic Arithmetic
Question
Aarti was trying to subtract . She followed the steps shown in below table. Where did she make a mistake?
 
Step 1 

Step 2 

Step 3 

Step 4 

Choices
Choice (4)  Response  

a.  Step 2 

b.  Step 3 

c.  Step 4 

d.  Step 1 

Question number: 294
» Mental Ability » Basic Arithmetic
Question
If c = 11 and d = 9, then
Choices
Choice (4)  Response  

a.  3 

b.  5 

c.  9 

d.   3 

Question number: 295
» Mental Ability » Basic Arithmetic
Question
A shopkeeper sold about 22 kg of sugar in a day. About how much sugar he sold in 72 hours?
Choices
Choice (4)  Response  

a.  66 kg 

b.  108 kg 

c.  30 kg 

d.  44 kg 
