Question

If p,q€N and 0.12Bar = p/q where p and q are relatively prime, the identity which of the follow incorrect
A. P is a prime no.
B. q-p is a prime no
C. q+p is a prime no
D. q is a prime no.

Please ans it fast

Answer 1

i hope this will usful to u

Answer 2

Answer:

(D) q is a prime number

Step-by-step explanation:

Given: p/q = 0.12222...

10p/q = 1.2222....------(1)

100p/q = 12.2222....-----(2)

(2) - (1)

90p/q = 11

=>p/q = 11/90

A. p is a prime number. (Correct)

B. (q-p) i.e.,90-11=79, is a prime number. (Correct)

C. (q+p) i.e.,90+11=101, is a prime number. (Correct)

D. q is a prime number. (Incorrect)