Simple Interest | Mathematics | Forester/ Forest Guard Exam 2026 | Forest Department Tripura

Added: 2026-05-10

[00:00:00]Simple interest. Simple.

[00:00:16]Okay. Simple.

[00:00:23]Simple.

[00:00:31]So simple formula P into T into R by 100 P into T formula for time.

[00:01:10]for rate of interest. Okay.

[00:01:31]Simple P into T into R by 100 and simple interest every year. Same simple 10.

[00:01:49]So simple simple interest unlike compound interest. Compound interest amount, right? Uh, amount of a amount of amount interest rate of interest.

[00:03:14]So principle integration question find a simple interest when principal is rupees 2,000. So principle principal 2,000 right P= 2,000 2,000 rate of interest so should rate equal to 5% 5% interest every year per year 5 and time= 5 years. Okay. So find the simple interest right. So simple interest formula s i = p into t into r by 100. All right.

[00:04:31]Five 5% rate of interest.

[00:04:47]So 2,000 into 5 into 5 by 100.

[00:04:52]So 100 2 100 divide just 0 0 0.

[00:05:02]So 55 5 are 25 25 20 500 simple rupees 500% 500 amount right so amount 2500 right. So however more interest is 500 simple interest every year right so 2000 is our principle One year 5% 200 5% sorry 2 5% 2000 5% number right side 1% value right for 200 200 10% 200 is 10% % 100. So every year 100% very important simple interest.

[00:08:02]Next question. Second question. The sum of money must be given at interest for 6 months. 6 months. 6 months.

[00:08:19]6 months.

[00:08:22]So whenever what is the sum of money% time= to 6 months 6 months so man convert 12 months 1 by= 1 by 2. So according to the question already 150 right? So according to the question simple interest simple interest into t by 100 right simple interest 15al into 4% 4 by 100 there.

[00:09:58]So divide 2 2 4 2 4 250.

[00:10:16]So 150 = P by 50= 15 or 0 150 into 50 7500 but 7,500.

[00:10:52]So principle that is 7,500.

[00:11:08]Next question.

[00:11:10]Okay.

[00:11:23]Amount equal to principle plus interest.

[00:11:28]Press again simple interest into T into R 100.

[00:11:43]Next question probably second part.

[00:11:55]A sum of money amounts to 850 in 3 years and 2925 in 4 years at the same rate of interest. The sum is so principle.

[00:12:10]So principal plus Yes.

[00:12:44]One year one year interest one year interest 925 minus 850 minus 575 every year every 75 rupees as a simple interest.

[00:13:19]So 4 simple interest 4 simple interest 4 into 75.

[00:13:30]So 75 4 5 20 7 4 are 28 20 uh sorry 5 4 are 20 74 28 300.

[00:13:44]So amount 92 amounts interest 300 625.

[00:14:12]So second important important question next video.

[00:14:31]Please watch part.

[00:14:46]Thank you.