SAT Math Practice Question #28591 - SATify | SATify

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SAT Math Practice Question #28591 - SATify | SATify

#28591

arithmetic

algebra

easy

60 sec

Evaluate $20 \cdot (\frac{1}{2} - \frac{1}{5} + \frac{1}{4})^{- 1}$ .

A.

$\frac{11}{20}$

B.

$\frac{20}{11}$

C.

$\frac{400}{11}$

D.

$\frac{11}{400}$

E.

$20$