Comparing Quantities (IMO Mathematics Olympiad Class 8): Questions 53  57 of 74
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Question number: 53
» Comparing Quantities
Question
The difference between compound interest and simple interest on a sum of 2 years at 20 % per annum, when the interest is compounded annually is Rs. 16. If the interest were compounded half yearly, the difference in two interests would be
Choices
Choice (4)  Response  

a.  24.30 

b.  25.00 

c.  25.64 

d.  25.50 

Question number: 54
» Comparing Quantities
Question
The selling price of goods which cost Rs. 20 and were sold at a gain of 10 % is________.
Choices
Choice (4)  Response  

a.  20 Rs. 

b.  22 Rs. 

c.  25 Rs. 

d.  24 Rs. 

Question number: 55
» Comparing Quantities
Question
There is 20 % increase in an amount in 2 years at simple interest. What will be the compound interest of Rs. 5, 000 after 2 years at the same rate?
Choices
Choice (4)  Response  

a.  2100 Rs. 

b.  1050 Rs. 

c.  1000 Rs. 

d.  2000 Rs. 

Question number: 56
» Comparing Quantities
Question
Simple interest on a certain amount is of the principal. If the numbers representing the rate of interest in percent and time in years be equal, then time, for which the principal is lent out, is________
Choices
Choice (4)  Response  

a.  5 years 

b.  6 years 

c.  9 years 

d.  8 years 

Question number: 57
» Comparing Quantities
Question
Simple interest on a certain amount is of the principal. If the numbers representing the rate of interest in percent and time in years be equal, then time, for which the principal is lent out, is________
Choices
Choice (4)  Response  

a.  6 years 

b.  5.5 years 

c.  9 years 

d.  6.66 years 
