The LCM of two numbers is 2310 and HCF is 55. If one of the numbers is 210. Then what is the other number ?
Pick
A) 715  B) 825  C) 330  D) 605  E) 465

Rationale: "first number * second number = lcm * hcf other number = 2310 * 55 / 210 = 11 * 55 = 605 answer : d"
Answer: D