shagalo wrote:
hi,
im confused with this :
i know that the assumption is a new piece of information (so it can not be a rephrasing to a premise or conclusion)
answer B "Strains of potatoes most commonly grown in Rosinia could not have produced the yieldslast year that they once did" is a rephrasing to the premise (but last year the harvest barely reached 60 million tons). in the premise we can see that last year the production is less than it used to be.
so, how can answer B an assumption ??? it is more an inference than an assumption .
can any one explain that please ?
thanks
Premise - harvest decreased last year
Conclusion - decrease is a result of no new higher-yeilding strains of potatoes are developed
Assumption - New higher-yielding strains are necessary to increase the harvest, OR, the older strain is not sufficient to increase the harvest
Also try negating B ->
B) Strains of potatoes most commonly grown in Rosinia could not have produced the yields last year that they once did.
Negating B -> Strains of potatoes most commonly grown in Rosinia COULD HAVE produced the yields last year that they once did - which means the reason for a decrease in harvest is something else and not the inability of agricultural researchers to produce new higher yielding strains. This completely weakens the conclusions and hence B) has to be the correct assumption, without it the argument falls apart.
Negation really works well in assumption questions. I have only started trying it and it does wonders. I would suggest this technique to anyone facing issues with assumption. It will take long initially but over time you will become quick at it.
Hope this helps.