The value of $(0.4)^4 - (0.4)^3$ is between - The Beat The GMAT Forum

The value of $(0.4)^4 - (0.4)^3$ is between

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Wed Dec 16, 2020 3:34 am

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The value of $(0.4)^4 - (0.4)^3$ is between

A. -1 and -1/2
B. -1/2 and 0
C. 0 and 1/2
D. 1/2 and 1
E. 1 and 2

Answer: B

Source: EMPOWERgmat

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Source: Beat The GMAT — Problem Solving | Wed Dec 16, 2020 3:34 am

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