Question

the value of the Machines
depreciated by 10% per year during the first two years and 15% per year during the third year Express the total depreciation of the machine as percent during the three year

Answer 1

Given:

(i) The value of the machines depreciated by 10% per year during the first two years.

(ii) In the third year, it depreciated by 15%.

To find:

(i) Total depreciation of the machine as a percentage during the three years.

Solution:

Let in the beginning, the price of the machine be 100.

At the end of first year, it depriciated by 10%.

So, now price becomes = (100-10)% of 100

= 90% of 100

= 90

Again, the price depreciated by 10%, at the end of second year.

New price = (100-10)% of 90

= 90% of 90

= 81

The price depriciated by 15% at the end of the third year.

New price = (100-15)% of 81

= 85% of 81

= 68.85

Net decrease from beigining = (100-68.85)

= 31.15

Percentage depriciation = [Depriciation/initial cost]*100%

= [31.15/100]*100%

= 31.15%

So, the total depriciation is 31.15%.

Answer 2

Answer:

answer is in attatchment.

Hope it helps you