JAMB 1990 · UME · Q46

The numbers 4, 16, 30, 20, 10, 14 and 26 are represented on a pie chart. Find the sum of the angles of the sectors representing all numbers equal to or greater than 16.

Worked solution (try it first)
  1. Total: 4+16+30+20+10+14+26=1204 + 16 + 30 + 20 + 10 + 14 + 26 = 120.
  2. The numbers equal to or greater than 16 are 16, 30, 20 and 26, which add up to 92.
  3. Their angles together: 92120×360∘=276∘\frac{92}{120} \times 360^\circ = 276^\circ, option D.

Report a problem with this question