Question

If a is 10% greater than b, and ac is 32% greater than bd, then c is what percent greater than d?

Answer 1

So if a is 10% greater than b, we can write that algebraically as
a = 1.1b
or
a/b = 1.1

Agreed? If so, write down the other given as an algebraic equation and we'll take it from there.

Answer 2

Okay, so then is ac=1.32bd?

Answer 3

Yep. Alternatively
ac/bd = 1.32

Now what you want is an expression for c/d.

See how to get it now?

Answer 4

Oh, okay so then I am pretty sure the answer is 20% right?

Answer 5

Yes, exactly.

Answer 6

Okay thank you!