exam
Maths Puzzle
Numerical Ability
y-3/5 - 1 = y-5/4
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In two dimensions, the determinant of an ordered group of numbers a, b, c, and d is defined as: ad - bc. Compute the determinant when a, b, c, and d equal 3, -2, 9 and 4 respectively.
In the time it takes to fliy 360 miles with a head wind, she can only fly 240 mies against the headwind. if the speed of the plane in stll air is 150 mph, find the wind speed.