exam Maths Puzzle Numerical Ability

I want to know the volume contained in the sphere up to height of 86 cm from bottom (sphere Inside diameter is 19000 mm)

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exam Other Question

Alana makes $5.80 per hour working in the library. To keep her job, she must make are least $116. per week; but to keep her scholarship, she must not earn more than $145. per week. What is the range of the number of hours per week she must work? A space shuttle 240 miles above the earth orbits the earth every 5 hours. How far (to the nearest 10 miles) does the shuttle travel in 1 hour? ( The diameter of the earth is approximately 8000 miles)[Theta=s/r]