C. 18 months
To calculate:
22.5 centimeters / 2.5 centimeters per 2 months = 9
9 x 2 months = 18 months
The average rate of hair growth is 2.5 centimeters every 2 months.
At that rate, how many months will it take to grow 22.5 centimeters of hair?
A. 9 months
B. 11 1/4 months
C. 18 months
D. 28 1/8 months
Which letter is correct?
A
B
C
D
1 answer