In a school of 850 boys, 40% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?	Choose the correct answer.
A) 125
B) 627
C) 187
D) 721
E) 159

Rationale: "40 + 28 + 10 = 78 % 100 – 78 = 22 % 850 * 22 / 100 = 187 answer : c"
Answer: C