NSO Level 1 Science Olympiad (SOF) Class 8: Questions 25  31 of 1076
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Question number: 25
Question
A mixture of 36 litres contains wine and water in the proportion , How much wine must be added to it so that the ratio of wine to water may be ?
Choices
Choice (4)  Response  

a.  16  
b.  8  
c.  10  
d.  12 
Question number: 26
Question
The HCF of and is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 27
Question
Find the smallest number of five digits exactly divisible by 4,20,22 and 25.
Choices
Choice (4)  Response  

a.  11000  
b.  12450  
c.  10800  
d.  10000 
Question number: 28
Question
M’s money is to R’s money as 6: 5 and R’s money is to Y’s money as 5: 3. If M has Rs. 300, Y has________
Choices
Choice (4)  Response  

a.  Rs. 150  
b.  Rs. 145  
c.  Rs. 175  
d.  Rs. 170 
Question number: 29
Question
Start with the number y. double it and then subtract 8. If the result is , the value of y is ________?
Choices
Choice (4)  Response  

a.  11  
b.  7  
c.  15  
d.  12 
Question number: 30
Question
Four different electronic devices make a beep after every 20 minutes, 40 minutes, 1 hour, and 1 hour 30 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at
Choices
Choice (4)  Response  

a.  12 midnights  
b.  3 am  
c.  6 pm  
d.  5 am 
Question number: 31
Question
The HCF of and is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
