Let, present ages of A and B be ‘5x’ years and ‘7x’ years respectively. So, 5x + 7 = 30 – 12 5x = 15 x = 3 Present age of B = 7x = 21 years
Mr. X invested Rs. 1200 in two schemes, A and B in the ratio of 7:3, respectively. Scheme A and B are offering simple interest at rate of 9% per annum a...
Rs. 5000 when invested at simple interest of r% p.a. amounts to Rs. 6000 in 24 months. If the same sum had been invested for 1 year at compound interest...
A man invests Rs X in a scheme at 12% rate of interest for 8 years. After 8 years he reinvests the amount received at same rate of interest for same tim...
The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 25% p.a. for 2 years, is Rs. 150. If...
Rs. 25,000 invested at simple interest of 6% p.a. yields the same interest after 2 years as Rs. 40,000 when invested at simple interest of 'y%' p.a. yie...
A sum of money triples itself in 12 years. Find the rate percent per annum.
...David takes a loan of Rs. 20000 from his friend Alex, which he is to return at 10% p.a. simple interest after 5 years. Alex takes...
Find the difference between True discount and Simple Interest on Rs. 7200 due after 5 years @ 4% per annum.
A certain amount earns simple interest of Rs. 1420 after 4 years. Had the interest been 5% more, how much more interest would it have earned?
Arjun acquired a smartphone with a price tag of Rs. 18,000. For the initial payment, he paid Rs. 2,160. The remainder was to be paid in two equal instal...
