From 12 members to 24, by what factor did the NJATC membership grow?

From 12 members to 24, by what factor did the NJATC membership grow?

• A. 1x
• B. 3x
• C. 2x
• D. 4x

Answer: (C)

To find the growth factor, divide the final value by the initial value. Here, 24 divided by 12 equals 2, so the NJATC membership grew by a factor of 2—it doubled. If it had grown by 1x, 12 would be the result; by 3x, 36; by 4x, 48, none of which match 24.

To find the growth factor, divide the final value by the initial value. Here, 24 divided by 12 equals 2, so the NJATC membership grew by a factor of 2—it doubled. If it had grown by 1x, 12 would be the result; by 3x, 36; by 4x, 48, none of which match 24.