Question

Sales of a book decreases by 2.5% when its price is hiked by 5%. The effect on the sales is

Answer 1

Answer:

I didn't know‍♀ sorry

Answer 2

SOLUTION

GIVEN

Sales of a book decreases by 2.5% when its price is hiked by 5%.

TO DETERMINE

The effect on the sales

EVALUATION

Let before hike in price -

Price of each book = Rs 100

Number of books sale = 100

Total amount

= Rs ( 100 × 100 )

= Rs 10000

After hike in price -

Price of each book = Rs 100 + 5 = Rs 105

Number of books sale = 100 - 2.5 = 97.5

Total amount

= Rs ( 105 × 97.5 )

= Rs 10237.5

Since 10237.5 > 10000

So there is a profit

Profit amount

= Rs 10237.5 - Rs 10000

= Rs 237.5

Profit percentage

$\displaystyle \sf{ = \frac{237.5}{10000} \times 100\%}$

$\displaystyle \sf{ = 2.375\%}$

$\displaystyle \sf{ \approx \: 2.4\%}$

FINAL ANSWER

Hence there is a Profit of 2.4%

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