Question
A rectangular park with length and breadth of 13 m and
19 m, is surrounded by a path of 3 m wide. Find the area of the path.Solution
Area of the inner rectangle = 13 m × 19 m Width of outer road = 3 m So, length of outer rectangle = 13 + 6 = 19 m & breadth of outer rectangle = 19 + 6 = 25 m Area of the outer side =19m×25m Area of Path = Area of outer rectangle – Area of inner rectangle = 19 × 25 – 13 × 19 =19(25-13) =19 ×12 = 228m²
'K' distributed his investments among two distinct funds, Mutual Fund X and Mutual Fund Y, in the respective ratio of 9:8. While Mutual Fund X generates...
A certain sum amounts to ₹13000 after 4 years and to ₹16000 after 8 years at the same rate percent p.a. at simple interest. The simple interest (in ...
What principal amount, when invested at an annual simple interest rate of 3.6% for 15 years, will generate an interest of Rs. 4,050?
Calculate the compound interest earned on investing Rs. 20,000 at 25% per annum compounded annually for 2 years.
- A sum is invested at a certain rate (p.a.) of compound interest (compounded annually). The interest earned after 1st year and after 2 years of investment i...
The difference between the simple interest and the compound interest compounded annually at the same rate on a sum of money at the end of two years is R...
What will be the ratio of simple interest earned by certain amount at the same rate of interest for 4 years and 6 years ?
Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5% per annum simple interest, the amou...
- A certain amount becomes Rs. 4200 in 4 years and Rs. 4800 in 6 years at simple interest. Find the interest earned if the same sum is invested at 20% p.a. c...
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...