IMO Mathematics Olympiad Class 8: Questions 261  266 of 1029
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Question number: 261
Question
In what time will Rs. 100 amount to Rs. 121 at 10 % p. a. , if the interest is compounded annually?
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  2 

d.  3 

Question number: 262
Question
There is 50 % increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 10, 000 after 2 years at the same rate?
Choices
Choice (4)  Response  

a.  20000 Rs. 

b.  3200 Rs. 

c.  2100 Rs. 

d.  3100 Rs. 

Question number: 263
Question
If a number x is 20 % less than another number y and y is 20 % more than 125, then x is equal to________.
Choices
Choice (4)  Response  

a.  120 

b.  125 

c.  140 

d.  150 

Question number: 264
» Quadrilaterals and Practical Geometry
Question
Choose the correct statement.
Choices
Choice (4)  Response  

a.  The diagonals of a parallelogram are equal 

b.  If the diagonals of a quadrilateral intersect at right angles, it is not necessarily a rhombus 

c.  The diagonals of a rectangle are perpendicular to each other 

d.  Every quadrilateral is either a trapezium or a parallelogram or a kite. 

Question number: 265
Question
The cost of a vehicle is Rs. 1, 50, 000. If its value depreciates at the rate of 20 % per annum then total depreciation after 3 years was________.
Choices
Choice (4)  Response  

a.  70100 

b.  72000 

c.  73200 

d.  71500 

Question number: 266
Question
The cost of a vehicle is Rs. 1, 00, 000. If its value depreciates at the rate of 20 % per annum then total depreciation after 3 years was________.
Choices
Choice (4)  Response  

a.  48800 

b.  48100 

c.  48500 

d.  48200 
