exam
Maths Puzzle
Numerical Ability
Solve the equation w=Cr-2 for r where C is a constant and r is the distance that the object is from the center of the earth.
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exam Other Question
Simplfy 4a3n6+ 4(a3n)6= 4(an2)3. the numbers behind the variables are the exponents and the ones outside of the parenthesis.
One plane departed from NY and, at the same time, another plane departed from Mexico City. They flew towards each other at rates of 650 mph and 550 mph. If NY and Mexico City are 3,000 miles apart, in how many hours did the planes pass each other?