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Re: The graph shows estimated annual user expenditures on pesticides by pe
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09 Feb 2024, 07:34
This question is almost a vision test haha. Anyway, this was how i solve it:
1) Let's consider 2000 million (value of the tick on the graph) = x
Herbicides
before=2x
after=3x
increase=3x/2x=1.5
Insecticides
before=1x
after=2,..x
increase=2,...x/1x=2,...
Fungicides
before=0.6x
after=1.1x
increase=1.1x/0.6x = 11/6<12/6=2
So, regarding percentual increase from 1988 to 2007, Herbicides < Insecticides, and Fungicides < Insecticides => Answer: Insecticides
2) For the year 1994:
Herbicides (H)= 3,0
Insecticides (I)= 1,4
Fungicides (F)= 0,7
I/(H+I+F)=1,4/(3+0,7+1,4)=1,4/5,1=14/51<15/51<15/50=30/100=30%
(It is almost 30%, but a little less)
Answer: between 25% and 30%
Anyone with a less eye-dependent solution?