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Average : Part 1 (in Hindi)
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Part 1

Abhishek Pandey is teaching live on Unacademy Plus

Abhishek Pandey
Top Educator in Defence Category. Movies, Music, Books.

U
Unacademy user
can u take it in English also
sir, in type:3 que:1 .. we can also use the arithmetic progression . Like it's been given the avg of 25 number is 76, so we can also apply summation of 25 terms with difference of 1,further divide by the number of terms i.e. 25
and we'll have : (25/2 * (2a + (25-1)*1) ÷ 25 = 76
and we'll get our 1st term,a = 66
64***
Abhishek Pandey
a year ago
Yes you can. this is also a approch. I have taught that method so that people who don't know what is ap can also solve the questions.
sir I have doubt in question number 4 .I think you have solved question which ask find the average of 5 consecutive of first natural numbers
Abhishek Pandey
a year ago
what doubt you have ?
Neeraj Sharma
a year ago
sir odd series is 1,3,5,7 and first 5 consecutive odd series is 1,5,9,13,17
Neeraj Sharma
a year ago
45/5=9
Neeraj Sharma
a year ago
OK sir I got it it's my mistake
Short tricks are really awesome sir!!👌 They are working totally fine on each pblm. Helping me a lot🙏 Thanks sir for bringing the new lessons everyday.. Really helpfull.
sir type 3 question 1.. that R1 formula can only be used for natural no... or we can also use it for even and odd nos
Abhishek Pandey
a year ago
even odd only
q2 type 1 me agr series 5,7,9 k na ho kr 2,4,6 k hai to kaise krenge sir find out k which one is gretaer or smaller
  1. Complete Mathematics Course for AFCAT Exam By Abhishek Pandey


  2. Average Type:01 2,4, 6, So Avera 2. Aretage 3. Find e ar age nt 3, Average N odd Number1. n +l Seru eS 4. Find e average Firt 2, 4, 6 &- Average- lad term 2 5 5I As


  3. 25 Con secucive Sol 18 50-51 52 Salh Smale 2.5-1 R, 2, Average Sc,n secutive odd 2.4 12. 2. 1315 2 Soun : 32 3y 36 3840 smallest