Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid $D$ dollars per hour for the first

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Gmat_mission: Legendary Member; Posts: 1622; Joined: Thu Mar 01, 2018 7:22 am; Followed by:2 members

Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid $D$ dollars per hour for the first

by Gmat_mission » Sun Oct 18, 2020 11:45 am

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Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid $D$ dollars per hour for the first $30$ hours and $D+ 10$ dollars per hour for the hours worked in excess of $30$ hours. What is the value of $D?$

(1) Last week Peter worked for $32$ hours.
(2) Peter got paid $\$8(D+10)$ more if worked for $40$ hours instead of $32$ hours.

Answer: E

Source: e-GMAT