Question
Six years from now, the ratio of
Krishna's age to his age two years ago is 3:2. Currently, Gaurav is 14 years older than Krishna. If Juju's current age is equal to the average of Gaurav's and Krishna's current ages, what is Juju's present age?Solution
ATQ, Let the present age of ‘Krishna’ = ‘y’ years According to the question, {(y + 6)/(y – 2)} = (3/2) Or, 2y + 12 = 3y – 6 So, y = 18 Present age of ‘Gaurav’ = 18 + 14 = 32 years So, present age of ‘Juju’ = (18 + 32)/2 = 25 years
A man wants to invest Rs. 60660 in bank accounts of his two sons whose ages are 12 years and 16 years in such a way that they will get equal amount at a...
- Sohan invested Rs. 11,600 at a simple interest rate of 7.5% per annum for 3.5 years. What will be the total amount he receives after the period?
Rs. 13000 invested for 2 years in a scheme offering compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 10 less than the i...
Simple interest earned on an amount of Rs. 1000 at rate of R% per annum after 4 years is Rs. 280. Find the simple interest earned on an amount of Rs. 15...
A certain sum is invested at a compound interest rate, compounded annually, which grows to Rs. 12,240 after 2 years and to Rs. 17,625.6 after 4 years. I...
Rs. 6,500 is invested in scheme ‘A’ offering simple interest of 14% p.a. and Rs. 9220 in scheme ‘B’ offering simple interest of 5% p.a. What is ...
A person invested Rs. P on simple interest at the rate of 15% for 5 years, and he invested Rs.(P + 100) at 10% compound interest for 2 years. The total ...
A sum of Rs. 3000 is invested at simple interest for 2 years. If the rate interest for first year is 10% p.a. while 18% p.a. for second year, then find ...
A man deposited Rs. ‘x + 700’ at 12% per annum simple interest and earned Rs. 624 as interest after 2 years. Find the interest earned by him if he d...
Simple interest earned on an amount of Rs.1600 at rate of R% per annum after 4 years is Rs.256. Find the simple interest earned on an amount of Rs.1800 ...
Relevant for Exams:
