IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 888  893 of 968
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Question number: 888
Question
The top of two poles of height and are connected by a wire. If the wire makes an angle of with horizontal, then the length of the wire is________
Choices
Choice (4)  Response  

a.  10m  
b.  12m  
c.  11m  
d.  13m 
Question number: 889
Question
The angles of depression of two ships from the top of a lighthouse are towards east. If the ship are 150m apart, the height of the lighthouse is________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 890
Question
If
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 891
Question
Three men, four women and six children can complete a work in seven days. A women does double the work a man does and a child does half the work a man does. How many women alone can complete the work in 7 days?
Choices
Choice (4)  Response  

a.  7  
b.  8  
c.  12  
d.  14 
Question number: 892
Question
Kruti took a loan at simple interest at in the first year with increases of in each subsequent year. She paid as interest after 4 years. How much loan did she take?
Choices
Choice (4)  Response  

a.  Rs. 12500  
b.  Rs. 15800  
c.  Rs. 30000  
d.  Rs. 33250 
Question number: 893
Question
The sum of n terms of the three arithmetic progressions are . The first term of each is unity and the common differences are 1,2 and 3 respectively, then________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
