exam Maths Puzzle Numerical Ability

With a head wind, a plane traveled 1000 mi in 4 hours. With the same wind as a tail wind, the return trip took 3 hours and 20 minutes. Find the plane's air speed and wind speed.

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exam Other Question

It costs business $20 to make one compact disk player and$10 to make one radio. Each week the company must make a combined total of at least 50 cd players and radios. At least as m Which of the following pair of points is indicative of a zero per the Intermediate Value Theorem?

a. (0,0) and (2,-3)
b. (-2,-3) and (2,3)
c. (2,0) and (0,-3)
d. (3,-4) and (-6,12)