IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 345  349 of 1040
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Question number: 345
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.  5.5 years 

b.  6.66 years 

c.  9 years 

d.  6 years 

Question number: 346
Question
What is 40 % of 50%?
Choices
Choice (4)  Response  

a.  2.0 

b.  0.2 

c.  0.02 

d.  2.5 

Question number: 347
» Quadrilaterals and Practical Geometry
Question
The given quadrilateral ABCD is________.
Choices
Choice (4)  Response  

a.  A trapezium 

b.  A convex quadrilateral 

c.  A parallelogram 

d.  A concave quadrilateral 

Question number: 348
Question
Reena bought a car for a certain sum of money. He spent 5 % of the cost on repairs and sold the car for a profit of Rs. 10,000. How much did he spend on repairs, if he made a profit of 10%?
Choices
Choice (4)  Response  

a.  3000 Rs. 

b.  2380.95 Rs. 

c.  5000 Rs. 

d.  2250.92 Rs. 

Question number: 349
» Quadrilaterals and Practical Geometry
Question
Given below are the steps of construction of a quadrilateral ABCD, where AB = 3 cm, BC = 6 cm, , which of the following is a wrong step?
(P) Step i: Draw AB = 3 cm.
(Q) Step ii: Draw at A and
(R) Step iii: With B as center and radius BC = 6.5 cm, draw an arc to intersect at C;
(S) Step iv: At C draw such that CZ meets AX at D.
Choices
Choice (4)  Response  

a.  Q 

b.  R 

c.  S 

d.  P 
