IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 273  277 of 1040
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Question number: 273
» Quadrilaterals and Practical Geometry
Question
Given below steps of construct a quadrilateral ABCD where AB = 5.2 cm, BC = 4.0 cm, CD = 4.2 cm, AD = 3.3 cm and which of the following is a wrong step?
(P) Step 1: Draw AB = 5.2cm and construct
(Q) Step 2: With A as center and radius AD = 3.3 cm, cut off AD = 3.3 cm along AX.
(R) Step 3: Join BD. With D as center and radius DC = 4.2 cm, draw an arc.
(S) Step 4: With B as center and radius BC = 4.0 cm, draw an arc to cut the arc drawn in above step at C. Join BC, CD to obtain the required quadrilateral ABCD.
Choices
Choice (4)  Response  

a.  S  
b.  P  
c.  R  
d.  Q 
Question number: 274
Question
A bag contains 50p, 25p, 10p coins in the ratio 1: 3: 2, amounting to Rs. 87. Find the total number of coins.
Choices
Choice (4)  Response  

a.  100  
b.  360  
c.  200  
d.  400 
Question number: 275
Question
When the price of a product was decreased by 10%, the number sold increased by 40%, what was the increase on the total revenue?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 276
» Quadrilaterals and Practical Geometry
Question
Four angles of a quadrilateral are in the ratio 2: 4: 6: 8. The greatest angle is________.
Choices
Choice (4)  Response  

a.  110  
b.  150  
c.  144  
d.  120 
Question number: 277
Question
A book was sold for Rs. 25.50 with a profit of 10%. If it were sold for Rs. 25.75, then what would have been the percentage of profit or loss?
Choices
Choice (4)  Response  

a.  Loss, 10%  
b.  Loss, 12%  
c.  Profit, 11.04%  
d.  profit, 11% 