Vous avez cherché: chartista (Catalan - Espagnol)

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solved it without using a calculator, because all the operations are very basic. the main trick here is to realise that we can obtain the percentage of opposite categories belonging to an entire group just by subtracting: 100% - percentage of the opposite category as we did twice in this exercise: 100% - 20% = 80% (to get the percentage of family units with children in 2000, compared to the category "not having children") 100% - 64% = 36% (to get the percentage of family units with no children in 2010, compared to the category "having children") as i have found in my experience with epso tests, this kind of reasoning is more often required when they provide you with a chart like the one in this example, a circular graphic, in which you should be able to see that the addition of all categories has to be 100%. so my advice is paying special attention to these circular graphics, from which you may obtain essential information about opposite categories belonging to the same group. 102
now we know that the percentage of family units with children in 2010 was 64%. let us analyse the following sentence of our question: in 2010, there was 360 000 family units with no children. this information could be useful if we needed to convert our percentages to calculate the actual number of family units for any category, or the total number of family units in france. but in this exercise, we just need to obtain a result in percentage (checking our answer options), and we already have our calculations in percentage format, so this new data is completely useless for us and it is the big pitfall that we mentioned above: if you try to include it in your calculations somehow, you will probably be lost soon and get a wrong result. finally, we can answer the question of this exercise: what was the percentage of family units with no children in 20102 knowing that the percentage of family units with children in 2010 was 64%, we can deduce that the rest of family units were family units with no children, so: 100% - 64% = 36% this implies that the right answer option here is a). my advice this exercise is a good example of how numerical reasoning is more important than calculations in most epso questions. we could have even 101