The cost of my school exercise book was Rs. 10. Now 1 buy the same exercise book for Rs. 12. Let's calculate the percentage increase in the price of the exercise book.

Sunit bought 2 exercise books for Rs. 14. Let's find how much he will pay for 7 such exercise books.

Due to the increase in the price of sugar, the amount of sugar bought for Rs. 125 is now boughgt for Rs. 150. Let us calculate the percentage rise in the price of sugar in present.

The bus fare from Sumitra's house to school was Rs. 4. Now to travel the same distance she has to pay Rs.6 Let's find the percentage rise in bus fare.

If the price of one exercise book is Rs. 6.50, Let's find the price of 15 such exercise books.

I have bought a dozen of exercise books from the Banerjee book stall of our locality for Rs. 90 only. Let’s calculate the price of such 18 exercise book by the Rules of three.

I bought 2 exercise books. Cost of each exercise book is x rupees. My friend Imtiyaz bought 6 exercise books. But cost of each exercise book of Imtiyaz is 5 more than my exercise book. Calculate, how much money did I spent on exercise books and how much did Imtiyaz spent on his exercise books.

The length of my exerise book is square cm. and its breadth is square cm. Let me find the peremeter of my exercise book.

Mithu wants to buy 4 exercise books. If exercise book costs Rs. 12.75, let’s find how much money Mithu will need.

The cost of 3 umbrellas or 1 chair is Rs. 600. Let's calculate the price of 2 umbrellas and 2 chairs.

Mili bought few exercise books for ₨. 80.50. Her brother bought few more for ₨. 57.50. Lets find the maximum price of an exercise book and total number of exercise books bought.