Question

The value of a scooter depreciates by 15% every year . If it's present value is ruppees 31025 what was its value one year ago

Answer 1

Step-by-step explanation:

) Let the value of the scooter before 1 year be Rs.x

Then according to question =x−

100

15

×x=31025

=85x=3102500

=x=Rs.36500

So, the value of the scooter before 1 year =Rs.36500

2) Let the initial price be Rs.100

Then as price is reduced by 10%

Therefore new price =100−10% of100

=Rs.90

Now the difference in prices =Rs.10

Therefore,Percentage increase =

90

10

×100

=11.11% (approx)

Answer 2

Answer:

• Value of scooter one year ago = Rs. 36, 500.

Step-by-step explanation:

Given:

• The value of a scooter depreciates by 15% every year.
• Present value of scooter = Rs. 31025

To Find:

• What was its value one year before.

Let the value of scooter 1 year before = Rs. x

Now, according to question value depreciates by 15% per year.

$\implies{\sf{x - 15\%\;of\;x =Rs.\; 31025}}$

$\implies{\sf{x-\dfrac{15}{100}\times (x)=31025}}$

$\implies{\sf{\dfrac{85x}{100}=31025}}$

$\implies{\sf{85x=31025\times 100}}$

$\implies{\sf{85x=3102500}}$

$\implies{\sf{x=\dfrac{3102500}{85}}}$

$\implies{\boxed{\sf{x=Rs.\;36,500}}}$

Hence, value of scooter one year ago = Rs. 36, 500.