The number of two digit prime numbers which remain prime even inverting the position of its digits is:
A. 4
B. 5
C. 9
D. 10
Answer: Option C
Solution(By Examveda Team)
These numbers are 11, 13, 31, 17, 71, 37, 73, 79, 97.This Question Belongs to Arithmetic Ability >> Number System
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
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