exam Maths Puzzle Numerical Ability

B + 3/E = F for E

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exam Other Question

A camcorder that regularly sells for $900 is on sale for $750. Find the discount rate. the speed of the airplane in still air is 186mph. the plane travals 538 mi againt the wind and 1415 mi with the wind in a total time of 12 hr. what is the speed of the wind