360 metres long yard, 31 trees are palnted at equal distances, one tree being at each end of the yard. What is the distance between 2consecutive trees
Choose the correct choice from the following options
A) 10
B) 12
C) 14
D) 16
E) 17

Rationale: "31 trees have 30 gaps between them , required distance ( 360 / 30 ) = 12 b"
Answer: B