IMO Mathematics Olympiad Class 7: Questions 555  560 of 1012
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Question number: 555
Question
Three bells toll at intervals of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a particular time. They next toll together after ________.
Choices
Choice (4)  Response  

a.  18 minutes 

b.  12 minutes 

c.  24 minutes 

d.  6 minutes 

Question number: 556
Question
In our office there are 60 % female employees. 50 % of all the male employees are computer literate. If there 62 % employees are computer literate out of the total 1600 employees, then the number of female employees who are computer literate is ________.
Choices
Choice (4)  Response  

a.  690 

b.  960 

c.  672 

d.  Can’t be determined 

Question number: 557
Question
A person by selling an article for Rs. 450, loses 20%, In order to make a profit of 20%, what is the price at which he must sell?
Choices
Choice (4)  Response  

a.  Rs. 500 

b.  Rs. 575 

c.  Rs. 475 

d.  Rs. 675 

Question number: 558
Question
During a football match, 5400 people showed their spirit by wearing home team’s colors. If 18000 people attended the game, what percent of crowd wear the same colors?
Choices
Choice (4)  Response  

a.  20% 

b.  30% 

c.  50% 

d.  25% 

Question number: 559
Question
Sneha saves of her salary each month by creating fixed deposit in bank. What percent of her salary she saved?
Choices
Choice (4)  Response  

a.  18.2% 

b.  12.5% 

c.  80% 

d.  15% 

Question number: 560
Question
In an examination one should get 25 % of the maximum marks to pass. A student obtains 86 marks and is declared fail by 64 marks. The maximum marks are ________.
Choices
Choice (4)  Response  

a.  600 

b.  350 

c.  810 

d.  660 
