Average
Concept
Concept
Average
is very useful for summarizing any quantity. For example we can say temperature
of the city. The city may have different temperature throughout the week. But
if we want to give single figure for it or we want to summarize it then we are
using average.
is very useful for summarizing any quantity. For example we can say temperature
of the city. The city may have different temperature throughout the week. But
if we want to give single figure for it or we want to summarize it then we are
using average.
Basic
formula:-
formula:-
For
example :-
example :-
if
we want to find average temperature of the city for the week. Temperatures for
the days of the week are
we want to find average temperature of the city for the week. Temperatures for
the days of the week are
Sunday:
33 °C
Monday: 34 °C
33 °C
Monday: 34 °C
Tuesday:
35
°C
Wednesday: 36 °C
35
°C
Wednesday: 36 °C
Thursday:
35
°C
Friday: 35 °C
35
°C
Friday: 35 °C
Saturday:
36 °C
36 °C
Average
= (33+34+35+36+35+35+36)/7 = 34.85 °C
= (33+34+35+36+35+35+36)/7 = 34.85 °C
Shortcut
Methods For Average
Methods For Average
TYPE
– I
– I
Rule
1:
1:
If
different distance is travelled in different time then,
different distance is travelled in different time then,
Rule 2:
If
equal distance is travelled at different speed.
equal distance is travelled at different speed.
If
equal distance is travelled at the speed of A and B then,
equal distance is travelled at the speed of A and B then,
Rule 3:
If
equal distance is travelled at the speed of A, B and C then,
equal distance is travelled at the speed of A, B and C then,
TYPE
– II
– II
Note:-
When a person leaves the group and another person joins the group in place of
that person then
When a person leaves the group and another person joins the group in place of
that person then
Rule 1:
If the average age is increased,
Age of new person = Age of separated person + (Increase in average × total
number of persons)
If the average age is increased,
Age of new person = Age of separated person + (Increase in average × total
number of persons)
Rule 2:
If
the average age is decreased,
Age of new person = Age of separated person – (Decrease in average × total
number of persons)
the average age is decreased,
Age of new person = Age of separated person – (Decrease in average × total
number of persons)
Rule 3:
New
average age of group =
average age of group =
TYPE
– III
– III
Note:-
When a person joins the group.
When a person joins the group.
Rule
1:
In case of increase in average
1:
In case of increase in average
Age
of new member = Previous average + ( Increase in average × Number of members
including new member)
of new member = Previous average + ( Increase in average × Number of members
including new member)
Rule
2:
2:
In
case of decrease in average
case of decrease in average
Age
of new member = Previous average – ( Decrease in average × Number of members
including new member)
of new member = Previous average – ( Decrease in average × Number of members
including new member)
Rule
3:
3:
New
average of group =
average of group =
Thnku
Thankssss
Mam &sir please provide topics in pdf
thanks 🙂
Thanx for this POST 🙂
Sir/Mam …. Will U Provide Preference of Post for MaleFemale candidate for SSC CGL 2015 ?
Yes we will post something on it today.
thanx mam :))
Thank u mam,
Gud mrg shadow,Thanks for asking dis request,,,,
gud morning Kumar :))
how r u bro ?
Tnx, 🙂
Could anyone provide me SSC heldesk email-id(?). I have completed Part-I registration of SSC CGL 2015. But when I am going to do Part-II registration, then It is showing "Wrong information entered".
vry helpful thanx SA :))
for which region .. do u want help desk email-id?
yes.. North-West-Region: Chandigarh
mam plzz post some one word substitution quiz…
Help…
Cant update registration part 2…
Same here….
We will post it soon!!!
Error is in the attachment….
Shri Wren Mishra
Deputy Director (NWR)
Staff Selection Commission
Block No.3, Ground Floor
Kendriya Sadan, Sector – 9
Chandigarh – 167 017
Tel.No. 09915509204, 09915509331
🙂
Ok. Tnx 4 info. I can see many applicants r facing the same problem. So I will wait if SSC can do something.
it may be server problem
Nice Post …Thanks SA 🙂
Hi praba,,,,
hlo kumar
Iam super,,what about u bro
when is the last date for applying CGL?
me also …:))
part 2 me dikkat aa rahi hai
How is ur preparation??
Yes i know becoze ir dp days dat
sir pls provide some error detection questions on grammar…..
gng onnnn
We will provide soon:)
@vartika mam?
Yes ??
pls post quiz mam 🙂
Mam can u plz provide a pdf of science subjects as like history n politics..it will be a great use for reference.
Mam plzz help… i'm filling my sister's SSC CGL form .. she is 26 yr 8 mnths as on 1st aug 2015,,, but when i'm submitting the form it's contineously showing me the msg "as per age criteria u r not eligible"… why that is so?? when the age criteria for allmost every post is 27 yr..
K Darling
advertisement no galat dikha raha hai
.mera bhi wo hi haal hai.
capsules on these subjects are already on SSC adda.Please search them in search box they are in PDF formate.
what shud we do now?
mam i cant update the second part of regitration.what shud i do now?
We will post Shriya but right now students have some queries about SSC form and exam.So first we try to Resolve these queries and after that we will post Quizes on daily bases like always:)
Oh..k mam..sorry..n thanku
k mam 🙂
There is some probkem in SSC site.many students have same issue,Wait for some time.
mam pls provide preference of post for CGL 2015…
thanks mam.and as that is not a completed form so i can fill a new form?
Yes you can fill.
thanks mam.
Its ok:)
We will provide it in few time..
Post Preference For SSC – CGL 2015
http://www.sscadda.com/2015/05/post-preference-for-ssc-cgl-2015.html
Thanks MAm….need of the hour
🙂
THANKS MAM 🙂
Madam mera tu part 1 hi nahi ho raha h avi lagta h ki kuch problem chal raha h site me
Sab information tu same h form fill karne la jaisa last year tha koi tu changes nahi hua madam plz inform if any changes
Same here
Mam/sir.
..how to prepare for statistical paper…plz give some light on the preparation strategy for this paper…plz..
Mam/sir.
..how to prepare for statistical paper…plz give some light on the preparation strategy for this paper…plz
Dont worry we will going to post it soon!!!
i think tumne preferance m # wali fill ki h to form fill ni hoga use hta k form fill kro shayd ho jaye bcoz usme age 20-25 hi h…
thnx….
now its working.. try nw 🙂
Hi Joy,
I have same issue, I tried to fill some more post but I found some issue , I mean they accept after age 1/08/1990. for every post.
I tried to fill post (#)(age-25), still accept the registration.
But for rest post not accepting, I thought there is issue in CGL online form.
yes after DOB 1/08/90 there is no problem with filling up the form.. but b4 that there are some serious issues… don't know what actually the problem is!! 🙁
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