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An orchard owner argues that he should replace his old guava trees with a new variety, since a tree of the new variety bears 74 kilos in a season against 52 kilos from a tree of the old one, and each tree would therefore earn him more. Which of the following is an assumption on which his argument rests?

Competition practiceLogical / Critical
  • AThe new variety can be planted in the same month of the year as the old one
  • BFruit of the new variety fetches a price for each kilo that is not so much lower than the old variety's as to cancel out the extra weight
  • CThe orchard has room for as many trees of the new variety as it now holds of the old
  • DA tree of the new variety begins to bear in its third year

Step-by-Step Solution

The evidence counts kilos and the conclusion counts earnings, and only the price for each kilo carries the one into the other. A heavier-bearing variety whose fruit sells for two-thirds as much would leave the owner worse off for every extra kilo he picked. Planting season, available room and the age of first bearing all leave that step from weight to money unsupported.
Answer: B) Fruit of the new variety fetches a price for each kilo that is not so much lower than the old variety's as to cancel out the extra weight

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