Numbers - General Aptitude

Q1:

Which of the following numbers is divisible by each one of 3, 7, 9 and 11 ?

A 639

B 2079

C 3791

D 37911

E None of these

ANS:B - 2079

639 is not divisible by 7 2079 is divisible by each of 3, 7, 9, 11.