NSO Level 1 Science Olympiad (SOF) Class 8: Questions 36  39 of 1076
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Question number: 36
Question
Start with the number X. Double it and then add 6. If the result is , the value of X is ________?
Choices
Choice (4)  Response  

a.  15  
b.  5  
c.  3  
d.  2 
Question number: 37
Question
A milkman mixed 2 litres of water for every 3 litres of milk and thus prepared a mixture of milk and water of 30 litres. If he finally adds 12 litres of pure milk to the mixture, find the ratio of milk and water in the mixture.
Choices
Choice (4)  Response  

a.  6: 7  
b.  4: 5  
c.  5: 2  
d.  7: 3 
Question number: 38
Question
Which of the following statement is true?
Choices
Choice (4)  Response  

a.  The centroid of an acute angled triangle always lies in the inside the triangle  
b.  The orthocenter of an obtuse angled triangle is the outside of the triangle  
c.  The circumcentre of an acute angled triangle is lies in the interior of the triangle.  
d.  All a. , b. and c. are correct 
Question number: 39
Question
In the diagram, ABCD and DEFG are rectangles. What is the area of the shaded region in ?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
