Amirah walks at an average speed of (x + 1) km/h
for x hours and cycles at an average speed of
(2x + 5) km/h for (x - 1) hours. She covers a total
distance of 90 km.
(0) Form an equation in x and show that it
reduces to 3r2 + 4x - 95 = 0.
(ii) Solve the equation 3r+ 4x -95 = 0.
(iii) Find the time taken for her entire journey.
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