exam Maths Puzzle Numerical Ability

At 4 pm, Gigi and Madel left the music house. Gigi walked east and reached her house at 5 pm. Madel rode her bike west and reached her house at 4:15 pm. Madel traveled twice as fas

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exam Other Question

I need some help with simplifying the following:

1/2y^2 + 6/8y^3

I come up with the following answer:

1/2y^2 + 3/256

Is this correct?
A cylindrical container has a base area of 100 cm^2 and is 12 cm high. If the container is one-third filled with water, what is the volume of the water in the container?