Question

cost of an ac is 78580 the cost of led 38720 and that of a washing machine is 19340 by how much cost of the ac is more than the cost of both led and washing machine
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Answer 1

Answer:

20%

Step-by-step explanation:

The cost of new washing machine is 22000.

The depreciated value of washing machine after 2 years is 14080

Formula :  

b is the amount after t years

a is the initial amount

r is the rate of depreciation

Substitute the values

Hence the rate of depreciation is 20%

Answer 2

Answer:

20520

Step-by-step explanation:

Required amount = {Ac-(led+washing machine)}

={78580-(38720+19340)}

=(78580-58060)

=20520

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