Along a yard 441 metres long, 22 trees are palnted at equal distances, one tree being at each end of the yard. What is the distance between two consecutive trees Choose the correct answer
A) 18 B) 19 C) 20 D) 21 E) 12

Rationale: "explanation : 22 trees have 21 gaps between them , required distance ( 441 / 21 ) = 21 option d"
Answer: D