Verbal and Reasoning :: Quantitative Comparison






If a = 3 then what is the value of (a2)3  a?

[A]. 
12  [B]. 
15

[C]. 
240  [D]. 
243 
[E]. 
726 


Answer: Option E
Explanation:
(a2)3 = a6 ? 36  3 = 729  3 = 726


asiyah majeed said:



how it becomes 726. if we put the values of a then ans will be 15 
Jay said:



how's it E? It should be B..
how you made 729 from 36??
Please explain.. or are you giving wrong solutions..?? 
erum said:



B is correct answer because a=3 put values then get answer 
ALI RAZA said:



b i correct no solution gives 726 kindly correct it 
fahad said:



This ans is right coz powers will multiply and become 6 and 3^6=729 and subtract the value of a that is 3... So 7293=726 
Majid said:



If (a^2)^3a then the answer is 726
but
if (a*2)*3a then answer should be 15....
So correct answer is 15...
b/c there is no sign of power....... 

