IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 797  802 of 1040
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Question number: 797
Question
The ratio of boys and girls in Reena’s classes is 2: 3. Which of the following ratio is not equivalent to 2: 3?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 798
Question
Find the compound interest on Rs. 10,000 in 2 years at 4 % per annum, the interest being compounded halfyearly
Choices
Choice (4)  Response  

a.  Rs 825.23  
b.  Rs. 885.20  
c.  Rs. 824.32  
d.  Rs. 800 
Question number: 799
Question
Sixty five percent of a number is 21 less than four fifth of that number. What is the number?
Choices
Choice (4)  Response  

a.  140  
b.  160  
c.  100  
d.  150 
Question number: 800
Question
At 12 noon, Nisha recorded the temperature as . The temperature had increased by from 10 A. M. The temperature at 8 A. M. was warmer than it was at 10 A. M. what was the temperature at 8 A. M?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 801
Question
If students of a class of strength 50 are boys, then the number of girls equals________.
Choices
Choice (4)  Response  

a.  40  
b.  30  
c.  20  
d.  10 
Question number: 802
Question
Present ages of Sameer and Anand is 5: 6 respectively. After 7 years this ratio becomes 6: 7 respectively. What is the present age of Sameer?
Choices
Choice (4)  Response  

a.  20 years  
b.  10 years  
c.  35 years  
d.  25 years 