Question

• The cost of 20 books is ₹ 800. How many books can be bought for ₹ 900.​

Answer 1

Answer:

22

Step-by-step explanation:

books brought for ₹800=20

books brought for₹1=20/800

books brought for₹900=20/800*900

=22.5

round off to 22 books

Answer 2

Answer:

$the \: cost \: of \: 20 \: </strong><strong>books \: = 800rupees \\ the \: cost \: of \: one \: book = \: \\ = \frac{800}{20} \\ = 40 \: rupees$

Number of books that can be bought from ₹40= 1 book.

Number of books that can be bought from

₹900=

$= \frac{900}{40} \\ = 22.5$

:. 22 books can be bought from ₹880 and ₹20 will be left.

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