exam Maths Puzzle Numerical Ability

Problem: Find the number of permutations of the first 8 letters of the alphebet for each situation.

25. taking 5 letters at a time

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exam Other Question

Quartic Regression? Can you define this? A developer wants to enclose a rectangular lot that borders a city street. If the developer has 248 ft. of fence and does not fence the side bordering the street, what is the largest area that can be enclosed.