NTSE Stage1 (StateLevel) ScholasticAptitude & Language Comprehension: Questions 25  30 of 1042
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Question number: 25
» Mathematics » Algebraic Expressions
Question
What can be said about the expansion of 2 ^{12n}  6 ^{4n}, where n is a positive integer?
Choices
Choice (4)  Response  

a.  Last digit is 8 

b.  Last digit is 2 

c.  Last digit is 4 

d.  Last two digits are zero 

Question number: 26
Question
If ABCD is a quadrilateral whose diagonals AC and BD intersects at O, then which of the given option is correct?
Choices
Choice (4)  Response  

a.  (AB + BC + CD + DA) = 2 (AC + BD) 

b.  (AB + BC + CD + DA) < (AC + BD) 

c.  (AB + BC + CD + DA) > (AC + BD) 

d.  (AB + BC + CD + DA) < 2 (AC + BD) 

Question number: 27
» Biology » Plant and Animal Nutrition
Question
The first transgenic plants expressing engineered foreign genes were tobacco plants produced by the use of
Choices
Choice (4)  Response  

a.  Arabidopsis thaliana 

b.  Bacillus thuringiensis 

c.  Agrobacterium tumefaciens 

d.  Streptomyces hygroscopicus 

Question number: 28
Question
Two planes start from a city and fly in opposite directions, one averaging a speed of 40 km/h greater than the others. If they are 3400 km apart after 5 h, the average speeds, respectively are
Choices
Choice (4)  Response  

a.  300, 340 km/h 

b.  250, 290 km/h 

c.  330, 370 km/h 

d.  320, 360 km/h 

Question number: 29
Question number: 30
Question
The relation between the living organisms, as well as the relation between the organisms and their surroundings is known as
Choices
Choice (4)  Response  

a.  Biosphere 

b.  Lithosphere 

c.  Ecosystem 

d.  Question does not provide sufficient data or is vague 
