SAT Math Practice Question #23003 - SATify | SATify

Home Practice Exams Features Pricing Quick Start Guide About

Loading...

SAT Math Practice Question #23003 - SATify | SATify

#23003

algebra

logarithms

Change of Base

hard

150 sec

For all integers $n$ greater than $1$ , define $a_{n} = \frac{1}{lo g _{n} 252}$ . Let $b = a_{2} + a_{3} + a_{4} + a_{5}$ and $c = a_{6} + a_{7} + a_{8} + a_{9} + a_{10}$ . Then $b - c$ equals

A.

$- 2$

B.

$- 1$

C.

$\frac{1}{252}$

D.

$\frac{1}{126}$

E.

$\frac{1}{2}$