On July, 2006 National, co. traded a machine used in the production of bottle caps for a newer model. National received a trade-in allowance of RS 10000 on the new machine, which had a list price of RS 65000. The old machine was purchased 7 years and 3 months ago at a price of Rs 42000. It had an estimated useful of 10 years and a salvage value of RS 3000. Straight-line depreciation was used.

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