IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 526  529 of 968
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Question number: 526
Question
A man whose bowling average is 18.2 takes 4 wickets for 46 runs and thereby decreases his average by 0.2. The number of wickets, taken by him, before his last match, is ________
Choices
Choice (4)  Response  

a.  140  
b.  115  
c.  130  
d.  110 
Question number: 527
Question
Sudhir buys a watch for Rs. . He pays half of the amount in cash and agrees to pay the balance in 12 annual instalments of Rs. 10,000 each. If the rate of interest is and he pays with the instalment the interest due on the unpaid amount, find the total cost of the watch.
Choices
Choice (4)  Response  

a.  4,25,000  
b.  6,85,000  
c.  9,25,000  
d.  3,82,000 
Question number: 528
Question
A rectangular carpet has an area of 105 sq. m its diagonal and longer side together equal 6 times the shorter side. The length of the carpet is ________
Choices
Choice (4)  Response  

a.  13.5 m  
b.  19.4 m  
c.  17.5 m  
d.  16.23 m 
Question number: 529
Question
In a certain office, of the workers is women, of the women is married and of the married women have children. If of the men are married and of the married men have children, what parts of workers are without children?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
