Mental AbilityBasic Arithmetic (NCO Cyber Olympiad (SOF) Class 5): Questions 17  24 of 147
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Question number: 17
» Mental Ability » Basic Arithmetic
Question
8 km 100 m equals ________.
Choices
Choice (4)  Response  

a.  8.1 km 

b.  508.0km 

c.  0.5080km 

d.  5.08 km 

Question number: 18
» Mental Ability » Basic Arithmetic
Question
Gita is mailing 3 books to her cousin. Each book is 7 inches long and 4 inches wide. She will mail the books together in 1 box. She wants to determine the size of the box she needs to mail the books. What information does she need?
Choices
Choice (4)  Response  

a.  The number of pages in each book 

b.  The thickness of each book 

c.  The weight of the books. 

d.  The distance the books will be sent 

Question number: 19
» Mental Ability » Basic Arithmetic
Question
5 Mins + 50secs = ________
Choices
Choice (4)  Response  

a.  3mins 170 secs 

b.  3 mins 65 secs 

c.  2 mins 90 secs 

d.  4 mins 85 secs 

Question number: 20
» Mental Ability » Basic Arithmetic
Question
5 km 80 m equals ________.
Choices
Choice (4)  Response  

a.  5.08 km 

b.  50.80 km 

c.  0.5080km 

d.  508.0km 

Question number: 21
» Mental Ability » Basic Arithmetic
Question
The smallest four digit number that can be formed using 8, 6, 3, and 2 is ________.
Choices
Choice (4)  Response  

a.  6328 

b.  6382 

c.  2368 

d.  2386 

Question number: 22
» Mental Ability » Basic Arithmetic
Question
The cost of 5 toys are Rs. 250. Find how many toys cost is Rs. 500?
Choices
Choice (4)  Response  

a.  15 

b.  21 

c.  20 

d.  10 

Question number: 23
» Mental Ability » Basic Arithmetic
Question
Which of the following expression below is true?
Choices
Choice (4)  Response  

a.  2 × (3 + 4) = 7 × (2 × 1) 

b. 


c. 


d. 


Question number: 24
» Mental Ability » Basic Arithmetic
Question
Monica divided a problem this way:
Her teacher marked it wrong. Which of the following is the correct answer and explanation?
Choices
Choice (4)  Response  

a.  Quotient 15 with a remainder of 2, because 15 3 = 45 and 45 + 5 =50 

b.  Quotient 15 with a remainder of 0, because 15 4 = 60 and 60  1 = 59. 

c.  Quotient 13 with a remainder of 0, because 13 =169. 

d.  All of the above 
