If $20$ percent of $3k$ is $6,$ what is $40$ percent of $k?$

Vincen wrote: ↑
Mon Oct 19, 2020 8:52 am
If $20$ percent of $3k$ is $6,$ what is $40$ percent of $k?$

A. 4
B. 12
C. 24
D. 36
E. 72

Answer: A

Source: Magoosh

20 % of 3k = 6
20 % of k = 2
40 % of k = 4

Option A is the answer.

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Re: If $20$ percent of $3k$ is $6,$ what is $40$ percent of $k?$

by Scott@TargetTestPrep » Thu Nov 12, 2020 7:32 am

Vincen wrote: ↑
Mon Oct 19, 2020 8:52 am
If $20$ percent of $3k$ is $6,$ what is $40$ percent of $k?$

A. 4
B. 12
C. 24
D. 36
E. 72

Answer: A

Solution:

We can solve for k first:

0.2 * 3k = 6

0.6k = 6

k = 6/0.6 = 10

We see that 40 percent of 10 is 4.

Answer: A

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