P is a prime number and (P2 + 3) is also a prime number . The no. of numbers that P can assume is:
A. 3
B. 2
C. 1
D. Can't determined
Answer: Option C
Solution(By Examveda Team)
Only, one value P can be assumed, which is at 2 at P = 2 P2 + 3 = 7 which is also prime Again at P = 3, 5, 7, 11 ....... P2 + 3 = an even number which can not be primeThis Question Belongs to Arithmetic Ability >> Number System
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Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
answer is c.1
Solution shows that answer is 2 But Question here is 3
Confusing??
Please has anyone to solve.....