if the ratio of two number is 4:6 and LCM of the number is 280 then what is the number. Pick one
A) 12 B) 20 C) 25 D) 30 E) 35

Rationale: product of two no = lcm * hcf 4 x * 6 x = 280 * x x = 12 answer : a
Answer: A