Question
'S' spends 15% of his monthly income on travel, 45% on
rent, and 10% of the remaining amount on groceries. He saves the rest in an investment scheme that gives simple interest at a rate of 9% per annum. Find the amount 'S' will get at the end of the year if his spending on groceries is Rs. 700 per month.Solution
Let monthly income = Rs. 100a Spending on travel = 100a × 0.15 = Rs. 15a Spending on rent = 100a × 0.45 = Rs. 45a Spending on groceries = (100a – 15a – 45a) × 0.1 = Rs. 4a Savings = 100a – 15a – 45a – 4a = Rs. 36a Now, 4a = 700 Or, 36a = 6300 Total interest paid by the investment scheme: = P × r × t = 6300 × 9 × 1/100 = Rs. 567 Amount = 6300 + 567 = Rs. 6867
Which of the following is a prime number?
- Ajay’s income is Rs. 50000. He spent Rs. 15000 less than the amount he managed to save. Find the percentage of income he used for expenses.
Which of the following is a prime number?
When N is divided by 5 the remainder is 2. What is the remainder, when n³ is divided by 5?
How many integers between 100 and 999 have all digits distinct?
- The sum of two numbers is 40 whereas the sum of their reciprocals is (10/3). Find the square of the product of the two numbers.
A number increases by 30 when 60% of it is added to itself. What is the final value after addition?
- Determine the least number that must be added to 960 to make it a multiple of 48.
Which of the following is a rational number?
The smallest number 'Z' which when divided by 16, 24, and 48 leaves 3 as the remainder in each case. Find the value of ('4Z' + 7).
Relevant for Exams:
