For the following questions answer them individually
Successive discounts of 13 percent and 19 percent are equivalent to a single discount of :
A shopkeeper offers a 20% discount on all garments and offers a further discount of 5% to those customers who pay cash. What does a customer have to pay in cash for a jacket whose marked price is ₹7,200?
A hemispherical bowl made of brass has an inner diameter of 14 cm. Find the cost of painting it from the inside at the rate of ₹15 per $$cm^{2}$$. (Use $$\pi = \frac{22}{7}$$)
The ratio of the cost price to the marked price of a table is 3:4. The shopkeeper gives two equal successive discounts of 25% on the marked price and sells the table for Rs.2,250. Find the loss during this transaction.
In how many years will Rs.12,500 become Rs.21,600 at the rate of 20% per annum on compound interest when interest is compounding annually?
Under simple rate of growth, the population (P units) of a city becomes 1.5 times of P in 10 years. In how many years, the population of the city would become double (2 times P) under the same growth rate?
During the first year, the population of a city increased by 5% and during the second year, it diminished by 4%. At the end of the second year, its population was 30,240. The population at the end of the first year was:
Bhanu can do a work in 10 days. Ramesh takes 12 days to complete it. Rohit takes as long as Bhanu and Ramesh would take working together. How long will it take Ramesh and Rohit to complete the work together?