Question

the price of gold ornament increased by 25% and then decreased by 20% the final price is?​

Answer 1

Step-by-step explanation:

Let x be the number

The number after being increased by 20% =x+

100

20

×x.

=x+

5

1

x

=

5

5x+x

=

5

6x

The new number decreased by 20 % =

5

6x

−

100

20

×

5

6

x

=

5

6x

−

5

1

5

6

x

=

5

6x

−

25

6x

=

25

30x−6x

=

25

24x

∴ the new number

25.

24x

decreased in percentage=

x

x−

25

24

×100%

=

25x

25x−24x

×100 %

=

25x

x

×100% = 40%

Answer 2

Answer:

Let the number be 100

Since, it is increased by 25%

Therefore, new number = 100 +25% of 100 = 125

Then, number is decreased by 20%

So, the number = 125 - 20% of 125 -25 = 100

So, the number got is equal to the number 100 = 100

Therefore this number is not decreased nor increased.