If \(20\) percent of \(3k\) is \(6,\) what is \(40\) percent of \(k?\)

[Vincen]

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

[jhavyom]

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.

[Scott@TargetTestPrep]

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