Question

value of machine depreciates every year by 20%. if the present value of the machine be rs.160000, what waht was its value last year?

Answer 1

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Answer 2

Answer:

Rs. 200000 was the value last year.

Step-by-step explanation:

Step 1: Given Data

Machine depreciate = 20%

Present value of machine = Rs.160000

Step 2: Suppose the value of machine last year is y

Step 3: Let the value be 100y last year  

Value is depreciated 20%  

Step 4: So, the present value = Value of last year - Depreciate amount                            =100y−100y x 20/100

=80y

Step 5: This year value of machine is 80y

And this year price is160000

So, 80y=160000

y=160000/80

The value of y is 20000

Step 6: The value be 100y last year

100y=100 x 20000

=Rs 200000