Crack RRB Group D 2026🚀 | Average Full Concept - 01 💯+ PYQ 🔥 | Tamil - Part 10

本站添加: 2026-05-14

[00:00:00]Hello friends, welcome you all to Max.

[00:00:19]Fore two group weighted average. So the weighted average for decimal places. one decimal places.

[00:01:59]Right.

[00:02:16]So first possibility possibility. Right.

[00:03:01]84 84 96 number. So X number 84 96 96 96 - X 84 proportional 63 96 37 37 84 96 84 96 36 63 So 37 + 63 100.

[00:04:05]So 12 / 100.1 the key number 63 63 63 into 12 3 6 6 12 1 3 3 6 So 6 57 So 7.56 7.56 14 32 6 7 7 3 So 4 44 4 So 4.44 44 number 4.44.12 4.46 number 4.44 44 subtract number 96 84 number 96 44 subtract middle number 84.5 84.5 96 - 4.44 44 96 - 4.44. So 96 - 4 92. So 91.56 84 84 + 7.56 9.56 9.5 91.56 average students eas.6 91.5.6 a class of 30 students took a physics test. Soal the other 14 students had an average score of 98. So the other students had an average score of 54. So 54 98 average 54 answer 98 54 Next 98 number 54 small number [clears throat] 54. So 984 984.

[00:08:44]So 15 2 are 22 2. So 22 x 15 22 x 15 15 65 4 60 so 10 10 65 90 So 1 14 So 4 6 14 multiplication. So 6 4 24 4 16 18 5 4 6 So 4 4 2 So 20 44 20.44 54 20.4 4 54. So 54 + 20.44 74.44.5 44 74.5 difference number 144 16 cricket. Cricket.

[00:10:32]Okay.

[00:10:50]For 14 innings, a cricketer has an average of 51 runs. In the 15th inning, he scores 29 runs. His average score increased by dash. Round off your answer to the nearest whole number.

[00:11:15]51 closer.

[00:11:19]Soatch 15.

[00:11:42]Okay.

[00:11:46]Typical 14th innings.

[00:11:58]15th innings 8 158. Correct.

[00:12:15]15th innings.

[00:12:19]151.

[00:12:39]So divide by 15 15 0 80 by 15. So 7* 75 sorry five times 75 so remaining 550 so 10.53.53 average 61.53 increase the 10.532.

[00:13:27]Simple and quick.

[00:13:39]A cricketer has an average of 54 runs for nine innings.

[00:13:50]In the 10th inning, he scores 191 runs.

[00:13:57]run score.

[00:14:01]By how many 18 - 15.7 Closest number 14, right?

[00:15:16]Okay. Right.

[00:15:18]Simple arithmetic mean sum of all observations divided by number of observations.

[00:15:43]Arithmetic mean sum of all observations divided by number of observations.

[00:16:11]Sum of observations data points 16 85 98 1 98 12 69 95 21 45 54 observations number of observations 1 2 3 4 5 6 7 8 9 So obser average mean formula.

[00:16:48]So for 16 + 85 + 98 16 + 85 90 1 199 199 uh + 12 199 2 1 2 1 21 + 9 220 280 280 + 90 uh 280 uh 310 315 325 335 336 336 341 381 381 + 50 391 uh 391 41 431 43 5 4 35 divided by observations. So first table 5945 49 36 36 775 535 535 second 49 495 total 495 cancel 5945 459 45. So 55 option right 60 48 625.

[00:18:47]Okay.

[00:18:52]504 34us 16 - 34 16US 34 85 85 + 35 + 35 50 + 35 85 98 98 48 12 32 - 32 - sorry - 38 - 38 38 that 12 69 19 + 19 95 + 45 21 29 - 29 45 - 5 54 + 34 + 35. So + 1 + 1 + 48 - 38 + 10 then - 29 - 5 total - 34 - 34 + 45 + 11.

[00:20:19]So + 10 11 22 32 40 41 41 + 4 45 observations complicated force.

[00:20:59]The division previousation method. First method arithmetic mean sum sum divided by number 17 + 64 704 74 81 81 + 55 80 50 130 136 136 146 156 166 + 7 173 173 uh 65 170 60 170 60 230 238 240 8 250 301 301 39 39 319 319 + 59 319 320 370 377 378 So for 378 divided by 9. So 378 / 9 cancel 4 9 are 36 2 9 are 18 then 42 50 44 37 number 40ation 23 so - 23 + 24 + 15 - + 25 - 28 + 11 - 22 + 19. So -3 then - plus -3 then + so + 1 uh - 3 - 3 - 3 - 9 - 9 + 9 + 11 + 2. So + 3 + 18. So 18 / 9 plus effect of adding, multiplying, subtracting on constant or average.

[00:24:10][snorts] N1, N2, N3, N4, N numbers. Okay.

[00:25:01]A + Simple N1 into 5. N2 into 5. So N3 into 5, N4 into 5, N5 into 5.

[00:25:49]constant multiply add numbers is seven.

[00:26:06]The average of 13 numbers. Okay.

[00:26:14]If each number is multiplied by two average 14 average.

[00:26:53]So the average of numbers into 21. So then average of seven numbers is 23. If each number is decreased by sevenus 16 simple average of seven numbers is 23. If each number is increased by four.

[00:27:35]So the average of the marks of 12 students in the class of in the class is 36. So if the marks of each students are doubled into meaningche Addition.

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[00:28:56]request. Thank you all. Thank you all for watching. See you in the next one.