Final answer:
To find out how many books can be bought for Rs 1,440, divide the total amount by the cost per book. In this case, the cost per book is Rs 160, so 9 books can be bought for Rs 1,440.
Step-by-step explanation:
To find out how many books can be bought for Rs 1,440, we need to understand the cost per book and then divide the total amount by that cost. The cost of 5 story books is Rs 800, so the cost of 1 book is Rs 800 divided by 5, which is Rs 160.
Now, we can find how many books can be bought for Rs 1,440 by dividing the total amount by the cost per book: Rs 1,440 divided by Rs 160 equals 9 books.
Therefore, for Rs 1,440, you can buy 9 story books.