If a quality control check is made inspecting a sample of 2 light bulbs from a box of 12 lightbulbs, how many different

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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 » Sat Mar 06, 2021 11:32 pm

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If a quality control check is made inspecting a sample of 2 light bulbs from a box of 12 lightbulbs, how many different samples can be chosen?

A) 6
B) 24
C) 36
D) 66
E) 72

Answer: D

Source: GMAT Prep

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