A survey of the opinions of eleven leading economists in a certain country showed that, because oil prices were expected to drop in that country over the next 12 months, they had reacted in the following way.
Eight had lowered their estimate of the consumer inflation
rate.
Nine had raised their estimate of the gross national product (GNP)
growth rate.
Two had lowered their estimate of the consumer inflation rate but
had not raised their estimate of the GNP growth rate.
How many economists had both lowered their estimate of the
consumer inflation rate and raised their estimate of the GNP growth
rate for that period?
_____ economists
Thus 6 economits had both lowered their estimate of the consumer inflation rate and raised their estimate of the GNP growth rate for that period
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