MathematicsDirect and Inverse Proportions (NSTSE (National Science Talent Search Exam Unified Council) Class 8): Questions 1  7 of 90
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Question number: 1
» Mathematics » Direct and Inverse Proportions
Question
42 men can complete a piece of work in 6 days. How many men can complete the same work in 18 days?
Choices
Choice (4)  Response  

a.  12 

b.  126 

c.  18 

d.  14 

Question number: 2
» Mathematics » Direct and Inverse Proportions
Question
If , and , then the ratio of is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 3
» Mathematics » Direct and Inverse Proportions
Question
The ratio of third proportional to 24 and 60 and the mean proportional between 18 and 50 is:
Choices
Choice (4)  Response  

a.  3: 2 

b.  1: 5 

c.  5: 3 

d.  5: 1 

Question number: 4
» Mathematics » Direct and Inverse Proportions
Question
x varies inversely as square of y. Given that for . The value of x for will be equal to:
Choices
Choice (4)  Response  

a.  3 

b. 


c. 


d. 


Question number: 5
» Mathematics » Direct and Inverse Proportions
Question
If , then is equal to:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 6
» Mathematics » Direct and Inverse Proportions
Question
A supplier undertook to do a certain piece of work in 36 days. He employed certain number of men, but 8 of them being absent from the very first day, the rest could finish the work in 54 days. The numbers of men originally employed were:
Choices
Choice (4)  Response  

a.  16 

b.  8 

c.  36 

d.  24 

Question number: 7
» Mathematics » Direct and Inverse Proportions
Question
If , then is equal to:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

