exam Maths Puzzle Numerical Ability

One angle is five times the measure of its complement. How many degrees is the measure of the larger angle?

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exam Other Question
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 Evaluate to three decimal places

a) 76.5 sin 45 degrees
b) 23 cos 63 degrees
c) 2.8 tan 80 degrees

Thanks!