🛑SESSION - 20 | சதவீதம் (PERCENTAGE) | PART - 1 | RADHINA TNPSC MATHS

Added: 2026-05-10

[00:00:00]Hi everyone, this is welcome again weekly three videos.

[00:00:26]Foregand.

[00:00:55]So that beginner easy basg Max YouTube channel A2 series A Seven. Standard term volume introduction.

[00:01:44]Okay.

[00:01:48]course already exam banking and complete DA course for banking aspirants banks data interpretation director percentage 100 percent.

[00:02:52]century.

[00:02:56]So per out of 100 meaning percent 500tal 400 500 400. So in the 400 mark out of 500 out of 500 400 out of 100 percentage.

[00:03:42]So percent So out of 100 by 100% one by 100 x percent x percent 50% 40% x% x 100 x percent of y x percent of y x by 100 into y 500 500 15% Percent of 500 15% of 500 15 by 100 into 500 next.

[00:05:20]So 15% 500 value 75. So 15 by 100.

[00:05:30]So basic.

[00:05:43]So beginner out of 100% student out of 25.

[00:06:10]80% 80% PDF 60 pages PDF.

[00:06:38]So first seven standards write 1 by five as percent. So fraction 1x fraction.

[00:07:09]So one fraction.

[00:07:21]So for one fraction Okay.

[00:08:00]So 20% 1 by 20%.

[00:08:11]So fraction to percent table.

[00:08:18]Fraction to percent table.

[00:08:31]for fraction table.

[00:08:42]Okay.

[00:08:49]First question exercise 2.1 example 2.2 2.1 convert 7x4 to percent into 100.

[00:09:17]Okay. So 25 into 25 17. So 175% 7 by 7 by improper fraction improper fraction 7 by 4x 4 + 3x for 4x4 plus 3x 100% 4x4 100% for example 5 by 5% 4x4 100% 3x4 75% 75% 75% for 2.4 Exercise 2.4 Four. Sorry.

[00:11:08]23 23 into 10 / 3 * remaining two 20.

[00:11:21]So remaining 76.6% 66% basic division based convert the fraction as percent. in the fraction 1 by 20. So 1x 20% 1x 5 20% 1 by 20% into 100.

[00:12:33]So 5% first one 5% already previous videog 25.

[00:13:14]So 13 by 25.

[00:13:20]Okay.

[00:13:23]So 132 52%. Is it clear?

[00:13:31]Fore response. for multiplication division.

[00:14:20]So into 4 into 52 okay slow response so 52% second question answer 52% third question 45 by 50 45.

[00:15:02]So total 19. Okay. So percent 90%. So 50 45% 90%.

[00:15:30]Okay. So 45 by 50 into 100 time. So 90. Okay.

[00:15:38]Next fourth 18 by 5 18 by 5 improper fraction 18.

[00:15:56]So 18 more than 300% one time 20. So 360% okay 18x 5 + 3x 5 15 x 5 3x 5 15 15 15 x 5 three part 300% number one number three number 300% 3x 60% so fraction So 300 + 60 360%.

[00:17:06]Next. Fifth question.

[00:17:10]27 by 10 27 100 27 27 into 270%.

[00:17:25]Okay. Next sixth 72 by 90 slow response 72 by 90% English Is it clear?

[00:17:57]80% fraction.

[00:18:12]Okay. Next. Okay. Next. Write the following percent into fraction.

[00:18:22]So first fraction first question 60% one by 100 divided by 100. Okay. divided by 100 simplif 0 3 * 5 60% 3 by 5 3% so fraction to percent to fraction percent fraction table.

[00:19:39]Yes. Second 12%.

[00:19:47]So 125% 125 / 100 cancel four times five times. So 5x4 okay 5x4 next third by 5% 3 by five percent by into 1 by 100. So 3 by 500 3x 5 equivalent percent fraction 3x 500 3x fraction 3x 500 already number one by 100.

[00:21:08]Okay. Next fourth 15 by 10% 15% 3 by 200. So fourth question answer 3 by 200 at the last 28 28 1 by3 percentage 28 into 3 or 24 84. So 85 by 3. Okay. 28 1 by 3 8 by 3 into 1 by 100 next one.

[00:22:24]So 17 by 16 equal fraction 17 by 60.

[00:22:41]Next.

[00:22:44]Next.

[00:22:59]Again 50% 50% 50 that is 1 by 2 50% value always 1 by 2 50% 1 by 2 7% 3x4 200 fraction. So second sum first second 75% 75 by 100. So 25 cancel 3x next third 250% 250% 250 by 100 5 by 2. Next fourth 30 1x 5 percentage 30 1x 5 percentage first in the mixed fraction 30 into 5 150 15 by 5 into percent 1 by 100 151 by 5 into 100 500 151 by 500 either in the percent equal ent fraction. Okay.

[00:24:34]Next.

[00:24:36]So, three questions.

[00:24:42]Fourth question.

[00:24:44]Fifth question 7 by 20% 7 by 20% equal fraction 90% Equal fraction comment section.

[00:25:09]comment section free.

[00:25:32]Okay. Yes. Next video question out of 20 beats five beats are red. What is the percentage of red?

[00:25:54]Concept understand 20 beats out of 20 beats five out of 20 beats.

[00:26:40]Okay.

[00:26:47]fraction into 100. Okay.

[00:27:01]So 5 into 5 25%.

[00:27:04]Okay. Is it clear? So concept total 20 time four time 1 by four portion Wait.

[00:27:53]Okay.

[00:28:03]14% 144%.

[00:28:16]Okay.

[00:28:18]Next question.

[00:28:24]In a survey, one out of five people said they preferred a particular brand of soap. Convert it into percentage.

[00:28:43]out of five. Out of five% very very simple questions.

[00:29:09]So group four concept 75 students from a government high school appeared for SSLC examination.

[00:29:35]for Total Total students 75.

[00:30:09]72.

[00:30:16]Okay.

[00:30:22]75 total 75 students. 72 students 25 4 24 into 4 96%.

[00:30:49]Okay.

[00:30:50]96% 75 members 72 pass failed candidates.

[00:31:14]Candidates three members again into 100% 100% Total 100% 96%.

[00:32:03]Okay. Okay. Next question. In a class of 50 students, 28 are girls, 22 are boys. Then express boys and girls in percentage very simple 50 members 28 girls. Okay. and 22 boys.

[00:32:29]50% either 44%. Is it clear?

[00:32:55]28 one time two time. So 28 into 56% boys total 502 100 one time two times so 44%.

[00:33:16]50 28 100 56 50 22 100 44 Okay, next question.

[00:33:26]Next exercise.

[00:33:32]There are 560 students in the school.

[00:33:34]Out of 560 students, 320 are boys. Find the percentage of girls in that school.

[00:33:50]Total level 560 the total students boys 320 42 240 total Total 560 total 240 into 100 again. Okay. So where I cancel 14 3x 7 that is 3 by 7 into 100 240 by 560 into 100 I'm deporting 0 three times seven times. So 3x 7 into 100 already 14 28 57 14 28 57 14.28 28 1 by 7 28.57 Now 2 by 2 2x 7 42.85 Now 3x 42.8 85 1428 57 Yes.

[00:35:49]3 into 100 300 by 7 4 * 28 remaining 2. So 2 * 14 remaining four.85% 85 percentage is the right answer. The question answer 42.85 percentage girls percentage. Okay. Next question.

[00:36:24]Exercise 2.1.

[00:36:27]Write each of the following fraction as percent.

[00:36:40]Free material one time two times. So 72% first sum 50 36 100 72 second 81 by 30 into 100 27 so 270%.

[00:37:16]Okay. Third question.

[00:37:19]Third question.

[00:37:28]Very simple.

[00:37:30]Fourth fraction 2 into 4 8 8 + 1 9 by 4 into 100 one time 25. So 2 25% into 25 + 1x 8 by 4% 1x 25% 25% mixed fraction fifth question 1 into 5 5 + 3 8 by 5 2x 2 1x 4 2 + 1x 4 2 1x 4 2 + 1x4 200 200% 1x4 25% 22% 1 100% 3x 5 60% 160% table. Fraction tablesp.

[00:39:09]fraction.

[00:39:15]Next question.

[00:39:22]Abu scored 436 marks out of 500 in his exams. What was the percent he scored?

[00:39:32]Answ that is 80% 500 436 marks.

[00:40:10]36 7 times remaining one two times. So 87.2%.

[00:40:16]So in the question answer 87.2%.

[00:40:20]Okay. Next.

[00:40:25]Yes.

[00:40:27]Write each of the following percentage as fraction. percent.

[00:40:34]So 21% 21 by 100. Okay, first question. Second question 93.1% 93.1 / 100% fraction.

[00:40:58]So divided by 14igit so 93.1 Second question 931 by,000. Third question 151% 151 by 100.

[00:41:48]151 by 100. Next third fourth question this one 65% 65 by 100 cancel 13 by 20. So fourth question and percent fraction 13 by 20 fifth question 0.64% already 0 64 / 100. Okay.

[00:42:41]64 by 10,000 answer options 64 by 1000 simplifi six times remaining 1 2 remaining to five times. So 4 by 625 is the right answer in the question. 4 by 625 the correct answer 0.64% fraction 4 by 625. Next Indian bought five dozen eggs. Out of that five dozen eggs 10 eggs are rotten.

[00:43:45]First total 5= 60 eggs.

[00:44:05]Good eggs.

[00:44:09]60.

[00:44:13]So 50% good total 60 into 100% 5 by 6 83.33% 500 by 250 83.33.

[00:44:49]Okay. Okay. Next question. In an election, candidate exe 48% of votes, what fraction will represent his votes?

[00:45:07]Percent to fraction screen 48% 48 by 100 percent cancel 12 25 12 by 25 and the fraction. Next question's total income was 7,500. He saved 25% of his total income. Find the amount saved by him.

[00:46:09]Total income savings 25% of 7,500 7,500 25% 25 by 100 into 7,500 25% 1x 25 times 7,500.

[00:47:05]So 7,500 3,500 3750.

[00:47:18]So again 1 8 * 7 * 585 is the right answer.

[00:47:33]savings.

[00:47:35]Okay, next question.

[00:47:38]Saved 1/4 of her salary, her savings percentages.

[00:47:52]So fraction into 100%.

[00:48:09]So savings 25%.

[00:48:14]Next score 15 out of 25.

[00:48:31]So 25 that is one four time 15 into 4 equal to 60%.

[00:48:43]Okay simple concept 0.07 0.07% 07.07.

[00:49:08]Okay. 100 Fore into 100 decimal multiplication by 100 into 100 10,000 7 by 10,000 option four is the right Okay, next question again.

[00:50:11]0.85 convert the given decimal to percent 0.8 85 into 100% into 100 percente 0.85 85 85% 85 85 0.05% into 5.00 that is 5%.

[00:51:26]Okay. Next 0.3 into 100% 30% 3 into 100 30%. Okay.

[00:51:49]0.025 025 into 100 2.5% 25%.

[00:52:18]Okay, next 2.25% very simple.

[00:52:43]Understand?

[00:52:46]Next. Convert the given percent into decimal. Okay.

[00:52:51]Okay. Okay. percent. So previous 58 is 0.58.

[00:53:16]Okay.

[00:53:18]8% 8% 8 by 100 0.08 8 by 100 0.08 8 decimal multiplication decimal division.

[00:53:47]Okay. Basics.

[00:53:49]Next 30% 30% 30 by 100 which is equal to 30.3.

[00:54:00]So 0.3 final 120% 120% 120 by 100% 120.

[00:54:25]1.2% 1.25% 1.25 / 100 again already 12 to 500.

[00:54:56]Sorry 10025.

[00:55:05]Okay. 0.012 0.0125 1.2.

[00:55:22]So 0.0125 answer. Okay. Next write this percentage as decimals again.

[00:55:44]First question three percentage 3 by 100 that is 0.03.

[00:55:51]Second one 25% 25 by 100 which is equal to 0.25 digits.

[00:56:01]Third one 80% that is 80 by 100. So again 0.8% 8 percentage. Okay. Fourth question.

[00:56:15]67% 67% 67 by 100 that is 0.67.

[00:56:26]Okay.

[00:56:28]0.175% sorry 0.17 1.35 0 it clear next So 70 m bought 1.5 m of fabric from a rule 25 1.75 into 100.

[00:57:38]Okay.

[00:57:43]Okay.

[00:57:46]1.75 1.75 four 1 4 * 4 4 75 2 * 1.5 4 * 3 so 4 + 3% Okay. So, okay.

[00:58:16]Next to percent.

[00:58:45]In an examination, a student scored 75% of marks. Represent a given percentage in decimals.

[00:58:53]75% 75 by 100.

[00:59:11]whole value.

[00:59:17]Next question.

[00:59:31]So part two video.

[00:59:53]Thank you. Next video. Bye.