Question

9. Twelve books can be bought for 600. If
the price of each book increases such that
there is a total increase of 30, how many
books can be bought by same money now?​

Answer 1

Answer:

so i think it is the answer

Answer 2

Approximately 11 books can be bought.

Step-by-step explanation:

Given,

The number of books = 12,

Total cost = 600 rupees,

So, the price of each book = $\frac{\text{Total cost}}{\text{Total books}}$

$=\frac{600}{12}$

= 50 rupees,

If the price of each book is increased by x,

Then total increment = 12x

According to the question,

$12x=30$

$x=\frac{30}{12}=2.5$

i.e. price of each book is increased by 2.5,

New price of each book = 50 + 2.5 = 52.5 rupees,

Hence, new number of books = $\frac{\text{Total cost}}{\text{New price of each book}}$

$=\frac{600}{52.5}$

≈ 11

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