I was unable to find below question in the form. I got this question during my GMAT prep exam one. I am not even sure how to get started on this question.
If 5^21 x 4^11 = 2 x 10^n what is the value of n?
A) 11
B) 21
C) 22
D) 23
E) 32
OA: B
agha79 Wrote:I was unable to find below question in the form. I got this question during my GMAT prep exam one. I am not even sure how to get started on this question.
If 5^21 x 4^11 = 2 x 10^n what is the value of n?
A) 11
B) 21
C) 22
D) 23
E) 32
OA: B
agha79 Wrote:Hi Jamie -
Thanks again. I always find exponent problems very intimidating. It seems that backing down the problem is key here. In future as well do you recommend for similar problems I should try to brake down the problem to an extent so it matches the side where the variable is? Or this approach is very specific to this problem.