Q. The percentage expenses on various items during book production and sale.
The central angle corresponding to the sector on "Printing Cost" is more than that of "Acvertisement Charges" by:
Answer: 61.2°
Notes: Difference in per cent expensses on printing cost and advertisement charges = (35 - 18)% = 17%
Now, 1% = 3.6%
∴ 17% = 3.6°$latex \times$17=61.2°