🇬🇧 English

40% of the trees in a wood are disease . 75% of the trees in the world are elm . What is the least possible percentage of trees in the wood that are diseased elm ?

1 answers
Answered Apr 20English
Conor's profile picture
Verified
Verified
Conor O’HalloranSavvy tutor and graduate of King's College London. Currently a financial analyst3 students helped

The amount of trees in the world that aren’t elm are 25%, (100 - 75 = 25). For the smallest possible amount of elm trees to be diseased, we must assume all of the non-elm trees are diseased. 40% (total diseased trees) - 25% (non-elm trees) = 15% This is the smallest possible amount of elm trees that are diseased!