NCO Cyber Olympiad (SOF) Class 10: Questions 48  52 of 461
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Question number: 48
» Mental Ability » Basic Arithmetic
Question
The number of words Kiara typed varied directly with the amount of time she spent typing. If she typed 120 words in 10 minutes, how long would it take her to type 1,320 words?
Choices
Choice (4)  Response  

a.  130 minutes  
b.  55 minutes  
c.  110 minutes  
d.  120 minutes 
Question number: 49
» Verbal Reasoning » CodingDecoding
Question
If DATE is written in a certain code as 4567, DRIVE as 41237, what will be the 5^{th} digit for DERIVED in the same code?
Choices
Choice (4)  Response  

a.  7  
b.  3  
c.  2  
d.  4 
Question number: 50
» Mental Ability » Basic Statistics
Question
A mathematics game uses a set of 56 cards. There are 5 cards for each of the numerals 0  9 and 6 wild cards. If the cards are shuffled, what is the probability that the top card is a wild card?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 51
» Mental Ability » Basic Statistics
Question
If each number in a set of six numbers is decreased by 2, then the arithmetic mean (average) of the original six numbers
Choices
Choice (4)  Response  

a.  Remains the same  
b.  Is increased by 2  
c.  Is decreased by 2  
d.  Is decreased by 4 
Question number: 52
» Mental Ability » Basic Arithmetic
Question
The mean weight of 90 students in a class is 70 kg. The mean weight of boys is 80 kg while that of the girls is 60 kg. The number of boys and girls are
Choices
Choice (4)  Response  

a.  35,55  
b.  45,45  
c.  25,65  
d.  60,30 