zerotoinfinite2006 wrote:

If the symbol @ represents either addition or multiplication, which operation does it represent?

(1) a@b=b@a for all numbers a and b

(2) a@(b–c)=(a@b)–(a@c) for all numbers a, b, and c

Question: what is the operation @ ?

@ = + or *

As soon as you look at the questions, you will be reminded of the number properties Commutative and Distributive.

statement 1:

(1) a@b=b@a

Commutative property =>valid for both, + as well as *, =>cant say, Not Suff

(2) a@(b–c)=(a@b)–(a@c)

Distributive property=> Always valid for * -> Sufficient

Answer : B

_________________

PS: Like my approach? Please Help me with some Kudos.