License plate in Oklahoma are of the form ABC1234 where the first three spaces on the plate can be any letters from A to Z and last four spaces on the plate can be any numbers from 0 to 9. Assume that all possible combinations of letters and numbers are considered valid lucelic plates.  A person witnessed a hit and run .They tell police that the licence plate of the car that drove off was an Oklahoma licence plate .the witness was sure that the first letter on the plate was an R. The first number on the plate was 3,6 or 8 and the last number on the plate was a 1 or 7. How many different plates could exist with these conditions.

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.