Question

21. Increase a price of 3200 by 10% and then decrease the new price by 10%. Is the final
price same as the original one?
​

Answer 1

Answer:

No the final price not same as the original one.

Step-by-step explanation:

3200 + ( 10% of 3200 )

= 3200 + ( 10/100 × 3200 )

= 3200 + 320

= 3520

Then,

3520 - (10 % of 3520 )

= 3520 - ( 10/100 × 3520 )

= 3520 - 352

= 2168

Answer 2

$\huge\bold{{\red{A}}{\blue{N}}{\red{S}}{\blue{W}}{\red{E}}{\blue{R}}{\red{☜}}}$

Yᴇs ᴛʜᴇ ғɪɴᴀʟ ᴘʀɪᴄᴇ ɪs sᴀᴍᴇᴠᴀs ᴛʜᴇ ᴏʀɪɢɪɴᴀʟ ᴘʀɪᴄᴇ.

$\small\mathfrak\pink{SoLuTiOn}$

3200/100×10

32×10

320

320/10÷100

=>320×10

=>3200

:.Final price is equal to original price.

$\huge\mathfrak{Explanation}$

For taking out percentage shere two values are given we muktiply them by 100.

So on multiplication for the first one it gave 320.

As the 0 of 10 and 100 & 3200 were cancelled and then.

The the left numericals were 32×10 which gave 320.

And then for the next we needed to divide but 320 and 10 were divide but on following tge rule 100 wAs multiplied by 32.

Hope ut helped u buddy...

Thank you.....☺❤