exam Maths Puzzle Numerical Ability

An airplane flew 4 hours with a 25 mph tail wind. The return trip against the same wind took 5 hours. Find the speed of the airplane in still air. .

Read Solution (Total 0)

exam Other Question

Given: f(x)= 7-2x and g(x)= 2x^2-1, find (f-g)(x) and (f*g)(x).


Thank you for you help!
Matt
Rationalize the denominator:

2
______________
√[6] - √[5]