Question 3
How many values of $x$ make both $x+2$ and $3x+4$ two-digit primes?
HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 03 Question 3
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 03
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 03