SAT Math Practice Question #29272 - SATify | SATify

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SAT Math Practice Question #29272 - SATify | SATify

#29272

algebra

arithmetic series

easy

90 sec

What is the value of $\frac{5 - 10 + 15 - 20 + 25 - 30 + 35 - 40 + 45}{10 - 20 + 30 - 40 + 50 - 60 + 70 - 80 + 90} ?$

A.

$1$

B.

$\frac{1}{2}$

C.

$- \frac{1}{2}$

D.

$\frac{1}{5}$

E.

$2$