In 1972,one could buy model rocket engines for $1.50 each.If those same engines cost $2.50 each today,then which pair of CPIs would make the engine prices in today's dollars the same for both years?

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The Answer of In 1972,one could buy model rocket engines for $1.50 each.If those same engines cost $2.50 each today,then which pair of CPIs would make the engine prices in today's dollars the same for both years?

In 1972,one Could Buy Model Rocket Engines for $1