exam Maths Puzzle Numerical Ability

Let f(x)=4-x^ and g(x)=2-x. Find f(x)-g(x).

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exam Other Question

Frank and Marie set sail from the same point. Frank is sailing in the direction S 6degrees E. Marie is sailing in the direction S 12 degrees W. After 11 hours, Marie was 9 miles sixteen men can completed a work in 15 days. 24 children can do the same in 20 days. in how many days will 8 men and 8 children together completed the same work.