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Question

The cost of a machine decreases by 10 % every year. Find the price after 2 years ,if the initial cost of the machine was ₹ 30000.


A

₹ 25300

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B

₹ 24700

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C

₹ 24300

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D

₹ 25000

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Solution

The correct option is C

₹ 24300


Cost of machine = ₹ 30000.

Rate of decrease = 10%

Cost of the machine at the end of first year = 3000010100×30000

= ₹ 30000 - ₹ 3000 = ₹ 27000

Cost of the machine at the end of second year = 2700010100×27000

= ₹ 27000 - ₹ 2700 = ₹ 24300


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