IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 334  339 of 1040
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Question number: 334
Question
If a number x is 5 % less than another number y and y is 5 % more than 110, then x is equal to________.
Choices
Choice (4)  Response  

a.  120 

b.  110 

c.  100.25 

d.  109.725 

Question number: 335
Question
A grocer purchased 50 kg. Of sugar at Rs. 10.50 per kg and mixed it with 100 kg sugar at Rs. 20 per kg. At what rate should he sell the mixture (per kg) to gain 20%?
Choices
Choice (4)  Response  

a.  20.5 Rs. 

b.  20 Rs. 

c.  20.2 Rs. 

d.  30 Rs. 

Question number: 336
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.  25.64 

b.  25.50 

c.  25.00 

d.  24.30 

Question number: 337
Question
The selling price of goods which cost Rs. 20 and were sold at a gain of 10 % is________.
Choices
Choice (4)  Response  

a.  25 Rs. 

b.  20 Rs. 

c.  22 Rs. 

d.  24 Rs. 

Question number: 338
» Quadrilaterals and Practical Geometry
Question
A trapezoid having two right angles is called________.
Choices
Choice (4)  Response  

a.  Isosceles trapezoid 

b.  Right trapezoid 

c.  Equilateral trapezoid 

d.  Question does not provide sufficient data or is vague 

Question number: 339
» Quadrilaterals and Practical Geometry
Question
The given quadrilateral ABCD is________.
Choices
Choice (4)  Response  

a.  A parallelogram 

b.  A convex quadrilateral 

c.  A Concave quadrilateral 

d.  All of the above 
