exam Maths Puzzle Numerical Ability

THE SPEED OF AN AIRPLANE IN STILL AIR IS 224KM/H. THE PLANE TRAVELS 733KM AGAINST THE WIND AND 1075KM WITH THE WIND IN A TOTAL TIME OF 15HR. WHAT IS THE SPEED OF THE WIND

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exam Other Question

City A and City B are 440 miles apart. If Jack leaves city A traveling 50mph and Jill leaves city B traveling 60mph, how long will they travel if they drive toward each other? For the total population of a large Southern city, mean family income is $34,000, with a standard deviation of $5,000.

(a) Imagine that you take a subsample of 200 city resident