IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 528  532 of 1022
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Question number: 528
Question
Ela can run 100 meters in 20 seconds. If she competes in the 400 meters race, about how many seconds will it take her to run the race?
Choices
Choice (4)  Response  

a.  4 secs 

b.  5 secs 

c.  80 secs 

d.  20 secs 

Question number: 529
Question
Sneha uses 150 m thread to stitch 5 dresses. How many of the same type of dresses can Sneha stitch with 600 m thread?
Choices
Choice (4)  Response  

a.  22 

b.  25 

c.  20 

d.  15 

Question number: 530
Question
There are three containers with liters, liters and liters of diesel. The greatest possible size of the measuring container with which we can measure the diesel of any container while every time the container must be completely filled is ________.
Choices
Choice (4)  Response  

a.  37 

b.  41 

c.  29 

d.  31 

Question number: 531
Question
Mohan has certain amount in his account. He gives half of this to his eldest son and one third of the remaining to his youngest son. The amount left with him now is ________.
Choices
Choice (4)  Response  

a.  of the original 

b.  of the original 

c.  of the original 

d.  of the original 

Question number: 532
Question
The total cost of 2 mirrors and 3 stools is Rs. 1525. If one stool costs Rs. 50 more than one mirror, find the price of each mirror and stool respectively.
Choices
Choice (4)  Response  

a.  Rs. 265, Rs. 355 

b.  Rs. 225, Rs. 375 

c.  Rs. 365, Rs. 215 

d.  Rs. 275, Rs. 325 
