Question
A park has an average of 140 visitors on Sundays and 80
on other day. The average number of visitors in a month of 30 days starting with Sunday isSolution
As the month begin with Sunday, so there will be five Sundays in the month. So, Total visitors on Sundays = 140 x 5 = 700 & Total visitors on other days = 80 x 25 = 2000 Total visitors in a month = 700 + 2000 = 2700 Now, average visitors in a month = 2700/30 = 90
A woman borrows Rs. 80,000 from a bank at 8% per annum. She invests Rs. 30,000 of it in a business at 12% per annum and the rest at 10% per annum. Calcu...
The difference between the compound interest and simple interest on a certain sum for 2 years at 10% per annum is Rs. 72. Find the simple interest on th...
A invests Rs 6000 in a business for the whole year. B joins him later with an investment of Rs 8000. At the end of the year, the profit is divided betwe...
- A sum of money placed at simple interest becomes Rs. 14,400 in 4 years and Rs. 18,000 in 7 years. What is the initial amount invested?
Ankita invested Rs. 1800 at an annual interest rate of (a + 5)%, and she earned a total interest of Rs. 1404 after three years. Now, if she decides to i...
- Rohit invested Rs. 18,000 at simple interest of 6% p.a. If he kept withdrawing Rs. 3,000 after every one year, then find the total interest earned by Rohit...
A sum of money lent at compound interest at the rate of 20% per annum is paid back in three equal annual installments of Rs.864. Find the sum of money?
The difference between compound interest and simple interest at rate of 18% per annum for 2 years is Rs. 486. Find the simple interest obtained on same ...
The difference between compound interest and simple interest on a sum of Rs 8,000 for 2 years at the same rate is Rs 20. Find the rate of interest per a...
A certain amount earns simple interest of Rs. 1360 after 4 years. Had the interest been 5% more, how much more interest would it have earned?
