Linear Equations in One Variable (IMO Mathematics Olympiad Class 8): Questions 41  47 of 61
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1029 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 41
» Linear Equations in One Variable
Question
A motor boat covers a certain distance downstream in a river in 1 hours. It covers the same distance upstream in 5 hours. The speed of the water is 6.0 km/hr. The speed of the boat in still water is_.
Choices
Choice (4)  Response  

a.  9 km/hr  
b.  19.5 km/hr  
c.  5 km/hr  
d.  11 km/hr 
Question number: 42
» Linear Equations in One Variable
Question
A number 125 is divided into two parts in the ratio 2: 3. The product of the number is_.
Choices
Choice (4)  Response  

a.  1550  
b.  3750  
c.  1250  
d.  3211 
Question number: 43
» Linear Equations in One Variable
Question
If the angles of a triangle are in the ratio 2: 4: 6, then the summation of the greatest and smallest angles is_.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  60 
Question number: 44
» Linear Equations in One Variable
Question
Of a number divided by of a square of same number make . The number is_.
Choices
Choice (4)  Response  

a.  75  
b.  50  
c.  25  
d.  20 
Question number: 45
» Linear Equations in One Variable
Question
5 years ago a father’s age is 3 times greater to his son’s age. In present age of a son is 15 years then how old the father is?
Choices
Choice (4)  Response  

a.  40 years  
b.  35 years  
c.  47 years  
d.  44 years 
Question number: 46
» Linear Equations in One Variable
Question
Find two consecutive negative integer, whose product is 90.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 47
» Linear Equations in One Variable
Question
If of a number is 32 more than the original number, then the number is_.
Choices
Choice (4)  Response  

a.  70  
b.  60  
c.  80  
d.  25 