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A drilling machine is required to have an eight-speed gearbox. The output speeds must increase from the lowest to the highest in an arithmetic progression series. The machine must also be able to drill a range of diameter holes from 0.8 mm to 10 mm at a cutting speed of 4 m/min. The drilling process has a value invested of £2000, accumulating at a compound interest rate of 1.74 %. 1.Determine how many years it takes to sell the lathe, by using GP. If the value of a machine was originally £3000 and depreciates by 5% per annum, then sold when it is less than £600.

A drilling machine is required to have an eight-speed gearbox. The output speeds must increase from the lowest to the highest in an arithmetic progression series. The machine must also be able to drill a range of diameter holes from 0.8 mm to 10 mm at a cutting speed of 4 m/min. The drilling process has a value invested of £2000, accumulating at a compound interest rate of 1.74 %. 1.Determine how many years it takes to sell the lathe, by using GP. If the value of a machine was originally £3000 and depreciates by 5% per annum, then sold when it is less than £600.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A drilling machine is required to have an eight-speed gearbox. The output speeds must increase from the lowest to the highest in an arithmetic progression series. The machine must also be able to drill a range of diameter holes from 0.8 mm to 10 mm at a cutting speed of 4 m/min. The drilling process has a value invested of £2000, accumulating at a compound interest rate of 1.74 %. 1.Determine how many years it takes to sell the lathe, by using GP. If the value of a machine was originally £3000 and depreciates by 5% per annum, then sold when it is less than £600.
Transcribed Image Text:A drilling machine is required to have an eight-speed gearbox. The output speeds must increase from the lowest to the highest in an arithmetic progression series. The machine must also be able to drill a range of diameter holes from 0.8 mm to 10 mm at a cutting speed of 4 m/min. The drilling process has a value invested of £2000, accumulating at a compound interest rate of 1.74 %. 1.Determine how many years it takes to sell the lathe, by using GP. If the value of a machine was originally £3000 and depreciates by 5% per annum, then sold when it is less than £600.
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