TCS
Company
Numerical Ability
Averages
if there are 11 no.s such that the average of first six no.s is 42 and the average of last 6 no.s is 54
then find the 6th no.
Read Solution (Total 14)
-
- sum of first 6 no.s = 42*6 =252
sum of lst 6 no.s = 54*6 = 324
as there are 11 no.s let they be a b c d e f g h i j k
here 6th no. is considered both in 1st 6 no.s and last 6 no.s
soo substractng both of them gives 324-252 =72
i dnt knw how to find after this - 8 years agoHelpfull: Yes(3) No(2)
- I got answer 56.
Anyone got?
please reply - 8 years agoHelpfull: Yes(3) No(1)
- yes ans is 56
- 8 years agoHelpfull: Yes(3) No(1)
- answer will be 26(if the data provided here and in the comments are correct)
hint : sum of 11 nos. = 11 x 50
sum of first 6 = 6 x 42
sum of last 6 = 6 x 54
so now, sum of 11 = sum of first 6 + sum of last 6 - 6th term
- 8 years agoHelpfull: Yes(2) No(0)
- average of 11 number is 50
- 8 years agoHelpfull: Yes(1) No(0)
- I got 26 as answer.
- 8 years agoHelpfull: Yes(1) No(0)
- where is avg of 11 people that is given in paper
- 8 years agoHelpfull: Yes(0) No(0)
- im the one posting the above qstn and im pretty sure that total average of 11 no.s is nt given in the problem.
- 8 years agoHelpfull: Yes(0) No(0)
- guys anyone remember that" freelancer" question??
- 8 years agoHelpfull: Yes(0) No(0)
- HOW U GET THE AVG OF 11 NOS IS 50?????????????
- 8 years agoHelpfull: Yes(0) No(1)
- first 6->42*6=252
last 6->54*6=324
(324-252)=72 answer
- 8 years agoHelpfull: Yes(0) No(0)
- 54-42=12
12*6=72 - 8 years agoHelpfull: Yes(0) No(0)
- avg =50 so total sum of 11 numbers=550
let 6th no is x,so acc to the given condition
sum of first 5 nos=6*42-x=252-x
sum of last 5 nos=54*6-x=324-x
so 6th term x=550-(252-x)-(324-x)
550-252+x-324+x
2x+550-576
2x-26
x=13 - 7 years agoHelpfull: Yes(0) No(1)
- Average of 11 numbers is 50 which is not given in the question.So the final answer will come as (6×42+6×54)-(11×50)=26
- 6 years agoHelpfull: Yes(0) No(0)
TCS Other Question