A parasail is 120 of a meter above the water. Then, after 10 minutes, the parasail is 150 of a meter above the water. What is the change in height?

A. 7/100 meter

B. 3/100 meter

C. 1/50 meter

D. 1/20 meter

The change in height is the difference between the final height and the initial height. The final height is 150/100 meters and the initial height is 120/100 meters. So the change in height is (150/100) - (120/100) = 30/100 = 3/10 = 3/100 meters.

Therefore, the correct answer is B. 3/100 meter.

To find the change in height, subtract the initial height from the final height.

Final height - Initial height = Change in height

150/100 - 120/100 = 30/100 - 12/100 = 18/100 = 9/50

Therefore, the change in height is 9/50 meter.

So, the correct answer is C. 1/50 meter.