IMO Mathematics Olympiad Class 7: Questions 278  282 of 1012
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Question number: 278
Question
Charmi and Chesti had 777 phone cards. Chesti had twice as many phone cards as Charmi. How many phone cards did Chesti have?
Choices
Choice (4)  Response  

a.  459 

b.  358 

c.  259 

d.  258 

Question number: 279
Question
Rahul and Chirag had 5184 phone cards. Rahul had seven times as many phone cards as Chirag. How many phone cards did Rahul have?
Choices
Choice (4)  Response  

a.  269 

b.  858 

c.  458 

d.  648 

Question number: 280
» Practical Geometry  Lines and Angles
Question
What is the angle between the hands of clock at 4 o’clock?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  150° 

Question number: 281
» Practical Geometry  Lines and Angles
Question
In the figure, AB is parallel to CF. DE is a straight line. Find.
Choices
Choice (4)  Response  

a. 


b. 


c.  108° 

d. 


Question number: 282
Question
When and , then which is true?
Choices
Choice (4)  Response  

a.  is divisible by 3 

b.  is divisible by 3 

c.  is divisible by 3 

d.  is divisible by 3 
