The table given below present the sunrise (SR) and sunset (SS) timings in a city during six consecutive days of a week. It is given that the total daylight time (in hrs) = T, and (12-T) expressed in hours is P.
| Days | D1 | D2 | D3 | D4 | D5 | D6 |
| SR | 0544 | 0542 | 0536 | 0545 | 0550 | 0539 |
| SS | 1730 | 1715 | 1736 | 1730 | 1728 | 1727 |
If all P's are represented through a pie chart, what will be the central angle (in degrees) of the sector representing D2?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 108.
PD1 = 12 - 11.77 = 0.23 hours
PD2 = 12 - 11.55 = 0.45 hours
PD3 = 12 - 12 = 0 hours
PD4 = 12 - 11.75 = 0.25 hours
PD5 = 12 - 11.63 = 0.37 hours
PD6 = 12 - 11.80 = 0.20 hours
Required answer = [0.45/(0.33 + 0.45 + 0 + 0.25 + 0.37 + 0.20)] × 360°
⇒ 360° × 0.45/1.5 = 108°