exam
Maths Puzzle
Numerical Ability
An airplane flies 1,000 due east in 2 hours and 1,000 due south in 3 hours. What is the average speed of the airplane?
This is what I did:
((1,000/2)+(1,000/3))/2
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exam Other Question
Prove that an isometry f is a translation if and only if there exist lines l and m that share a common perpendicular such that f=pl o pm (First Translation Theorem).
4x(-12x*20)