I think that the OA is wrong in this question. What do you think?
Is the two-digit prime number p
equal to 17 ?
is greater than 250
(2) p = n^2 + 1
, where n is an integer.
The OA is B. The OE mentions that the only two-digit prime that is one larger than a square is 17. But, what about 37?
37 is a prime number, and 37 = 6^2 +1.
By the way, is there a faster way to solve this question than picking numbers?
"Life’s battle doesn’t always go to stronger or faster men; but sooner or later the man who wins is the one who thinks he can."
My Integrated Reasoning Logbook / Diary: my-ir-logbook-diary-133264.html