Question

Choose the correct option.
The price of Nylon ribbons was Rs. 35 per square metre in January. Few months later it was
marked up by Rs. 25. What is the percentage increase in the price of Nylon ribbons?​

Answer 1

Answer:

the answer for this question is

28.57%

Answer 2

Answer:

Required increase percentage is 40%.

Step-by-step explanation:

Given,

We know,The price of Nylon ribbons was Rs. 35 per square metre in January.

And few months later it was marked up by Rs. 25.

This is a problem of percentage.

We know,

$x\% = \frac{x}{100}$

By some examples we can understand this concept easily,

Example -1:

$5\% = \frac{5}{100} \\ = \frac{1}{20}$

Example-2:

$25\% = \frac{25}{100} \\ = \frac{1}{4}$

Example-3:

$70\% = \frac{70}{100} \\ = \frac{7}{10}$

Example -4:

$\frac{2}{3} \% \\ = \frac{2}{3} \times \frac{1}{100} \\ = \frac{1}{3 \times 50} \\ = \frac{1}{150}$

Here,

$25 \: rupees \: mean \: is \: 100\%$

By Unitary method, 1 rupee mean is

$\frac{100}{25} \%$

35 rupees mean is

$\frac{100 \times 35}{25} \\ = 140 \: rupees$

So, percentage increase (140-100)% = 40%

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