Bunuel wrote:

If a, b and c are even integers greater than 10, is a+b divisible by 6?

(1) b=2c

(2) a=2b

Given: a, b, c are even integers greater than 10

Question : is a+b divisible by 6?Statement 1: b = 2ca = 12, b = 28, c = 14 , a+b = 40 i.e. NOT divisible by 6

a = 14, b = 28, c = 14 , a+b = 42 i.e. divisible by 6

NOT SUFFICIENT

Statement 2: a = 2bi.e. a+b = 2b+b = 3b

Now 3b must be divisible by 3 as well as by 2 because b is even hence

3b will be divisible by 6

SUFFICIENT

Answer: option B

_________________

Prosper!!!

GMATinsight

Bhoopendra Singh and Dr.Sushma Jha

e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772

Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi

http://www.GMATinsight.com/testimonials.html

22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION