What is the smallest number which when increased by 3 is divisible by 27, 35, 25, & 21 ?  Choose the correct answer.
A) 4722 B) 4725 C) 4728 D) 4731 E) 4733

Rationale: "here smallest number means lcm hence lcm of 27,35 , 25,21 = 3 ^ 3 x 5 ^ 2 x 7 = 4725 therefore required number is 4725 - 3 = 4722 ans - a"
Answer: A