exam Maths Puzzle Numerical Ability

ON AN AIRPLANE THAT IS 2/3 FULL, 20% ARE GIRLS, ONE FOURTH OF PASSENGERS ARE WOMEN, 1/8 OF THE PASSENGERS ARE BOYS AND THERE ARE 68 MEN. HOW MANY SEATS ARE THERE ON THE PLANE?

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exam Other Question

The lengths of the sides of a non-right triangle are 17 inches, 9 inches, and 12 inches. Find the area of the triangle. Round to the nearest tenth. The height h in feet of an object after t seconds is given by the function
h = -16t^2 + 40t + 9.
How long will it take the object to hit the ground? Round your answer to the nearest thousandth.

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