A survey of the opinions of 12 leading Economists in a certain country showed that, because oil prices were expected to drop in that country over the next 12 months,

10 had lowered their estimate of the consumer inflation rate,

10 had raised their estimate of the gross national product (GNP) growth rate.

3 had lowered their estimate of the consumer inflation rate but had not raised their estimate of the GNP growth rate.

How many Economists had raised their estimate of GNP growth rate and lowered their estimate of the consumer inflation rate for that period?

TY