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Average : Part 3 (in Hindi)
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Part 3

Abhishek Pandey is teaching live on Unacademy Plus

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

U
Unacademy user
Sir this course is sufficient for CDS? I Am giving CDS (2) 2019 By just following ur course for mathematics
In type 6 question ans was (a+e)/2 but 3rd option was (b+d)/2 which also stands true of consecutive numbers
Ty so much sir.....for selecting type 6 (que.2)...its really helped how to analyse the que. 👍
Sir, in type 6 2nd quetion, you took avg of two different sets of 5 consecutive odd numbers. but in type 1 you said that avg of any N consecutive odd numbers can be found by just counting the terms.
Abhishek Pandey
a year ago
just for confirmation nothing else. for odd numbers you can count numbers only
so if they ask the avg of odd nos. from 9 to 17 , I should count the no. of odd terms?
Abhishek Pandey
a year ago
No First 10 odd numbers first 5 odd numbers then this trick is applicable.
Abhishek Pandey
a year ago
not for random series.
ok thankyou sir!
how to find avg for random series ?
Abhishek Pandey
a year ago
use basic formula : sum/number of terms
Okay sir
Rachit rajvanshi
10 months ago
so sir in the type 1 the tricks are valid only if the series start from the first no.?
sir in type-6 que-2 , option 2 as well as option 3 is correct . According to you we are using hit and trial method and we've opted the option 2 as soon as we get the correct answer and never checked the option 3 . But option 3 is correct too. Sir can you tell us what to do if two out four options are correct ?
Abhishek Pandey
a year ago
this will not happen in your question paper just for clear understanding I have included the 5 as option so that candidates can keep this thing in mind.
sir that was option 1 ... i am not talking about 5
there were two correct answers that are : (a+e)/2 and (b+d)/2
Abhishek Pandey
a year ago
ok it's a random values in Question paper you will get only correct option.
ok sir
  1. Complete Mathematics Course for AFCAT Exam By Abhishek Pandey


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