Study the following table carefully ans answer the questions given below :
Number of books of different prices bought over the months.
In the price range of Rs. 1000 - Rs. 1999 the number of books bought in January is what percent of the number of books bought in May in the same price range ?
What is the ratio between the number of books in price range Rs. 4000- Rs. 5000 bought in January and March?
For the following questions answer them individually
Prabha started a business investing Rs. 32,000. After 5 months Amit joined her with a capital of Rs. 22,000. At the end of the year the total profit was Rs. 16,409. What is Prabha's share in the profit ?
The simple interest accrued on an amount of Rs. 16,500 at the end of three years is Rs. 5,940. What would be the compound interest accrued on the same amount at the same rate in the same period? (rounded off to two digits after decimal)
Prerna decided to donate 15% of her salary to an orphanage. On the day of donation she changed her mind and donated Rs. 1,896 which was 80% of what she had decided earlier. How much is Prerna's salary?
If the Numerator of the fraction is increased by the 600% and Denominator is increased by 200 %  The resulting fraction is $$2\frac{4}{5}$$ . Then what is the original Fraction ?
The present ages of Trisha and Shalini are in the ratio of 7: 6 respectively . After 8 years the ratio of their ages will be 9 : 8. What is the difference in their ages ?