Maria bought \(4\) black and a certain number of red and blue pencils at \(15\) cents each and carried them home in one

This topic has expert replies
Legendary Member
Posts: 2068
Joined: 14 Oct 2017
Followed by:3 members

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Maria bought \(4\) black and a certain number of red and blue pencils at \(15\) cents each and carried them home in one bag. After Maria came home, she took out one pencil at random to write a note and then put the pencil back into the bag. Sometime later, she needed to write another note and again took out a pencil from the bag. If the probability that Maria wrote both her notes in black is \(\dfrac1{36},\) how much did she spend on all pencils?

A. \(\$3\)
B. \(\$3.2\)
C. \(\$3.4\)
D. \(\$3.6\)
E. \(\$3.8\)

Answer: D

Source: Manhattan GMAT