Question
Currently, the combined age of Rajesh and Ramesh is 77
years. One year ago, the ratio of their ages was 7:8, with Rajesh being 7 parts and Ramesh being 8 parts. What is Ramesh's present age?Solution
Let the present age of Rajesh = 'y' years Then, present age of Ramesh = (77 - y) years According to the question, (y - 1):(77 - y - 1) = 7:8 Or, 8y - 8 = 532 - 7y Or, 15y = 540 So, y = 540 ÷ 15 = 36 So, present age of Ramesh = 77 - 36 = 41 years
A Bank came up with an interesting investment plan under which it would offer 6% interest compounded half-yearly. Mr. 'X' deposited ₹ 80000 once at th...
What will Rs. 40,000 amounts to in 3 years at the rate of 20% p.a., if interest is compounded yearly?
Rs. (3y + 600) is invested at 40% p.a. compound interest, compounded annually for 2 years, and earns an interest of Rs. (4y - 1200). Determine the value...
A sum of money at a certain rate of interest when compounded annually becomes ₹625 in 4 years and ₹675 in 5 years. What is the rate of Interest per ...
The compound interest on a sum of ₹ 5,500 at 15% p.a. for 2 years, when the interest is compounded 8 monthly, is:
Divide Rs. 53,285 into two parts such that the amount received from first part after 12 years is equal to the amount received from second part after 8 y...
At what rate percent per annum will Rs. 75,000 yields a compound interest of Rs. 6,120 in 6 months, if the interest is being compounded quarterly? Calcu...
A certain sum invested at compound interest of 10% p. a compounded annually, returns Rs. 6292 after 2 years. If a 20% greater sum is invested at a simpl...
A person invested 6,000 in a bank at compound interest compounded annually. After 3 years, the sum became 7,986. What was the rate of interest?
A certain sum of money yields Rs. 8,334 as compound interest for 3 years at 15% per annum. Calculate the approximate compound interest on the same amoun...
Relevant for Exams:
