Saved Bookmarks
| 1. |
Find the simple interest on rs 8000for three years at the rate of 4% |
|
Answer» ong>Answer: PRINCIPAL for the first year = Rs.8000, Rate = 5% per ANNUM, T = 1 year INTEREST for the first year = = 100 P×R×T =Rs.[ 100 8000×5×1 ]=Rs.400 ∴ Amount at the end of the first year = Rs. (8000 + 400) = Rs. 8400 Now principal for the SECOND year = Rs.8400 Interest for the second year = 100 P×R×T =Rs.[ 100 8400×5×1 ]=Rs.420 ∴ Amount at the end of the second year = Rs. (8400 + 420) =Rs.8820 Interest for the third year = 100 P×R×T =Rs. 100 8820×5×1 =Rs.441 ∴ Amount at the end of the third year = Rs.(8820 + 441) = Rs. 9261 Now we KNOW that total C.I. = Amount - Principal = Rs. (9261 - 8000) = Rs. 1261 we can also find the C.I. as follows Total C.I. = Interest for the first year + Interest for the second year + Interest for third year = Rs. (400 + 420 + 441) = Rs.1261 Step-by-step explanation: |
|