rachitasetiya wrote:
Hi Bunuel, thanks for putting up such amazing questions.
My Question:
STatement 2: we know that c=2.
Now the question states that a<b<c; (integers) and we know that the factorial of a negative number is not defined.
thus, automatically a=0, b=1.
so shouldnt the answer be B?
Hey rachitasetiya,
The second statement only focuses on the factorial of c. So, we can definitely conclude that c = 2. But there is no information in the second statement, which can
help us conclude that a,b and c are consecutive integers.I guess when you said that "
the factorial of a negative number is not defined", you also considered the information given in the first statement, to draw your conclusion.
Please remember, in DS, when we are solving a question using a particular statement we should focus only on the information given in that statement independently.
Hence, from the second statement, we get to know that c = 2 and there is nothing mentioned about a and b. Hence the second statement is
not sufficient to answer the question.
It is only by combining, you can conclude that a = 0, b= 1 and c =2.
I hope the above explanation is clear.
Thanks,
Saquib
Quant Expert
e-GMATRegister for our Free Session on Number Properties (held every 3rd week) to solve exciting 700+ Level Questions in a classroom environment under the real-time guidance of our Experts