The pie chart given below shows the number of nurses in the 5 hospitals. The data is presented in the terms of degrees.
Total number of nurses in H5 and H1 = 3240.
Number of nurses in H1 are what percent less than the number of nurses in H4?
Show answer & explanation
Correct answer: D
Explanation
Given:
H1 = 54°
H4 = 72°
H5 + H1 = 3240
H5 + H1 = 54° + 54° = 108°
108° → 3240
1° → 3240 / 108 = 30
Nurses in H1 = 54 × 30 = 1620
Nurses in H4 = 72 × 30 = 2160
Decrease = 2160 − 1620 = 540
Percentage Decrease = (540 / 2160) × 100 = 25%