exam Maths Puzzle Numerical Ability

How many ways can a president, vice president , and secretary be chosen from a club with only 3 members

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exam Other Question

3. The linear equation

y= 0.15+ 0.79

represents an estimate of the average cost of gas for year x starting in 1997. The year 1997 would be represented by x = 1, for example, An angle has measure x degrees. Find the average of the measures of a complement and a supplement of the angle.