The pie chart given below shows the number of keys manufactured by 5 machines. The data is presented in the terms of degrees.
Average number of keys manufactured by M3 and M5 = 1500.
Number of keys manufactured by which machine are '2400'?
Show answer & explanation
Correct answer: C
Explanation
Given:
M1 = 54°, M2 = 120°, M3 = 72°, M4 = 36°, M5 = 78°
Average of M3 and M5 = 1500
M3 + M5 = 72 + 78 = 150°
Average of 150° = 1500
Total = 3000
1° = 3000 / 150 = 20
Now,
2400 = 2400 / 20 = 120°
Which corresponds to 120°? ⇒ M2