8) 40% of the trees in a wood are diseased. [2] 75% of the trees in the wood are elms. Work out the possible percentage of trees in the wood that are diseased elms. least A square has a side of 8 cm 9) [4] The area of the square increases by 50% Work out the percentage increase in the length of the side. The number of students in a year is 10) [2] 250 to 2 significant figures 200 to 1 significant figure. How many students could there be? Give all the possible answers.
8) 40% of the trees in a wood are diseased. 75% of the trees in the wood are elms. Work out the least possible percentage of trees in the wood that are diseased elms. [2] 9) A square has a side of 8 cm The area of the square increases by 50% Work out the percentage increase in the length of the side. [4] 10) The number of students in a year is 250 to 2 significant figures 200 to 1 significant figure. How many students could there be? Give all the possible answers. [2]
y10-christmas-2015-higher-hw.docx