Ali gives the following percentage of his time to different subjects. He gives 10% time to Islamiat, 20% to Science, 20% to Urdu, 20% to Mathematics and 30% to remaining subjects. What is the angle of the remaining subjects on the pie chart?

144°

120°

108°

None of these

To find the angle for the remaining subjects on the pie chart:

Percentage for remaining subjects = 30%

Since a circle is 360° and represents 100%,

Angle for remaining subjects = (30/100) * 360°

= 0.3 * 360°

= 108°