Latest tcs Aptitude Question SOLUTION: 6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. hence the current average age has become 45. find the age of seventh person? (a) 69 (b) 70 (c) 40 (d) 45

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(#M40001731) TCS aptitude question 2010 puzzle Keep an EYE

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. hence the current average age has become 45. find the age of seventh person?
(a) 69 (b) 70 (c) 40 (d) 45

Asked In tcs Submited By-- UN (1 year ago)

Puzzle Status: Solved     By »» satyajit kr choudhary

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satyajit kr choudhary  (1 year ago)

ANS WILL BE 69......
SOLN- SINCE AVG AGE OF 6 PERSONS AFTER TWO TEARS IS 43....SO PRESENT AVG AGE WIL BE 41 YRS..THEREFORE TOTAL AGE=41*6=246.....NOW THE 7 TH PERSON JOINS IN AND THE CURRENT AVG BECOMES 45..THEREFORE TOTAL CUURENT AGE=45*7=315..
THE 7TH PERSON AGE WILL BE (315-246)=69...

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basu l c  (1 year ago)

let age of 6 persons is 'x'
ans:69
solution:
after two years age will be =(x+12)
average age=43
therefore (x+12)/6=43 ->x=246
(x+7th person age)/7= (246+7th person age)/7=45(average age)
(by solving) the 7th person age is 69

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saurabh  (1 year ago)

thi is 69

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Manikandan S  (7 Month ago)

ans 69...69+6*41/7

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(#M40000391) CAMPUS MATHS PUZZLE Keep an EYE

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45. Find the age of seventh person?

Asked In campus Submited By-- V.V.Ravi Teja (2 year ago)

Puzzle Status: Solved     By »» Karthik Pandiyan

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Karthik Pandiyan  (2 year ago)

Ans: 69
Let x,y,z,a,b,c are six persons
Current avg age =k
given that after 2years avg age is 43
x+y+z+a+b+c+12 =43(6)=258
x+y+z+a+b+c=246
after 7 th person(d) joined current avg age is 45
x+y+z+a+b+c+d=45(7)
246+d=315
d=69

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YadeeshKumar  (2 year ago)

Ans:45

(a+b+c+d+e+f)=258
(a+b+c+d+e+f+g+12=315
(a+b+c+d+e+f+g=315-12=303
g=303-258
g=45

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Ankit Pandey  (2 year ago)

69 years

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Vadivelan M  (2 year ago)

69. Solution : 69+6*41/7 = 45

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susmit  (2 year ago)

2

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meena  (8 Month ago)

answer is 45.
sum of their ages is 43*6
after two years each one age is incremented by 2.
x is 7th person age.
((43*6+12)+x)/7=45.
by solving this u will get x=45.

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(#M40000704) TCS MATHS PUZZLE 3 dec tcs Keep an EYE

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. hence the current average age has become 45. find the age of seventh person?

(a) 69 (b) 70 (c) 40 (d) 45

Asked In TCS Submited By-- Rajeev Singh (2 year ago)

Puzzle Status: Solved     By »» Poornima Saxena

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suneil  (2 year ago)

let x be the total age of 6 person.so after 2 years the total will be (x+12).
(add 12 since 2 years is added for 6 persons)
avg= (x+12)/6=43 . so x=246
seventh person is added so (246+y)/7=45 . on solving we get y as 69

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YadeeshKumar  (2 year ago)

ans is a)69
there are 6 persons after two years there avg years will be 43.
so obviously now there average year is 41.
so sum of 6 persons age is 246.
the current avg age has become 45.
45*7=315
315-246=69.

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Poornima Saxena  (2 year ago)

after 2 years avg age= 43
thus present avg age=41
when seventh person joins then avg age =45
i.e. his age increment the avg age by 4
thus his age = 45+4*6= 69
ans: a

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(#M40000828) TCS MATHS PUZZLE tcs recent puzzle Keep an EYE

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45. Find the age of seventh person?
a) 43 b)69 c)52 d)31

Asked In TCS Submited By-- Yashar (2 year ago)

Puzzle Status: Solved     By »» KTP

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Rupkatha Nag  (2 year ago)

ans is:- b)69
After 2 yrs,
avg age of 6=43
so, total age=43*6=258
so,current age at present=258-(6*2)=258-12=246
let current age of 7th person is x.
then,(246+x)/7=45
solving we get,x=69.

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KTP  (2 year ago)

Ans : b 69
Let the sum of current ages og 6 persons =x
Given Average age of 6 perosn after 2 years =43
x+6(2)/6=43 >> x+12=258 >> x=246
Let the seventh's person age ibe y
Given Current avg age of 7 = 45
Sum of current 6 person's age (x) + Seventh person's age (y) /7= 45
246+y=45(7)
y= 315 -246 = 69
Hence Seventh person's age = 69

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(#M40001143) TCS MATHS PUZZLE Keep an EYE

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. hence the current average age has become 45. find the age of seventh person?

Asked In TCS Submited By-- vishwas tiwari (2 year ago)

Puzzle Status: Solved     By »» Pratik Jana

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Pratik Jana  (2 year ago)

now avg age of 6 persons is(43-2)=41
total age 41*6=246
total age of 7 person = 45*7=315
then the age of 7th person=(315-246)=69;
other short process---
now the avg age of6 person =41
7th person make it 45, then the 6 other persons' age increase 4. total
increased age=4*6=24.
then 7th person's age i=24+45=69

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soumya brahma  (2 year ago)

let the total age of 6 people be x yrs
after 2 yrs it becomes (x+12)
therefore; (x+12)/6=43
=>x= 246
again; (246+ 7th person's age)/7=45
=>7th person's age = 69 yrs

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Joy  (2 year ago)

x+12=6*43
x=246

7*45-246=69
ans=69

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vishal jha  (2 year ago)

69

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Amrit  (2 year ago)

69

Is this solution Helpfull? Yes (1) | No   

Tausif Hassan  (2 year ago)

18yrs

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(#M40001525) TCS MATHS PUZZLE latest Keep an EYE

6 persons standing in queue with different age group, after two years
their average age will be 43 and seventh person joined with them. Hence
the current average age has become 45. Find the age of seventh person?

Solution

let the total age of 6 people be x yrs
after 2 yrs it becomes (x+12)
therefore; (x+12)/6=43
=>x= 246
again; (246+ 7th person's age)/7=45
=>7th person's age = 69 yrs
This answer is given by SOUMYA BRAHMA and is correct answer

Like manish sir answer on facbook.

Asked In tcs Submited By-- Aashu (1 year ago)

Puzzle Status: Solved

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(#M40001639) TCS MATHS PUZZLE puzzle 2010 Keep an EYE

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. hence the current average age has become 45. find the age of seventh person?
(a) 69 (b) 70 (c) 40 (d) 45

Asked In tcs Submited By-- UN (1 year ago)

Puzzle Status: Solved     By »» vamsi krishna reddy

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vamsi krishna reddy  (1 year ago)

now avg age of 6 persons is(43-2)=41
total age 41*6=246
total age of 7 person = 45*7=315
then the age of 7th person=(315-246)=69;
other short process---
now the avg age of6 person =41
7th person make it 45, then the 6 other persons' age increase 4. total
increased age=4*6=24.
then 7th person's age i=24+45=69

Is this solution Helpfull? Yes (4) | No   

(#M40002749) TCS MATHS PUZZLE math prob Keep an EYE

5 persons standing in queue with different age groups, after two years their average age will be X (I couldn't remember) and 6th person joined with them hence the current average age has become Y (I couldn't remember). Find the age of seventh person?

Solution

average age at present = X-2
and after the joining of 6th person average = Y
so 5(X-2)+ K = 6Y
so K = 6Y-5(X-2)

Like manish sir answer on facbook.

Asked In TCS Submited By-- Foram Sanghadiya (1 year ago)

Puzzle Status: Solved

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vignesh s p  (1 year ago)

let the sum of 5 person's age be A.
((A-10)/5)=X.(BEFORE 2 YRS FOR 5PERSONS)
LET 6TH PERSONS AGE BE B
((A+B)/6)=Y.
BY SOLVING THESE EQN U CAN GET THE AGE OF 6th person.

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sreedhar  (1 year ago)

sum of 6 persons =say=75
sum of age of 7 perssons=82
so age of 7th person=82-75=7kg....thats it

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Raghav  (1 year ago)

assume the avg age of 5 prsns 2 years ago is 48.(will be given in the question)
Now(after 2 yrs) their avg age is 50.
the total age is 48x5=240
now a 6th person joins let his age be x.
assume that the avg age now is 45.(It will be given in the question)
so 240+x/6=45
x=270-240
x=30 yrs.

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TANMAY DAS  (1 year ago)

2 yrs ago age of 5 person is 5(x-2)where x is present age.
now present age of 5 person is 5(x-2)+10
after adding 6th person,current age of 6 person is 6y
avg age of 7 person is......{5(x-2)+10+6y}/7

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(#M40003525) TCS MATHS PUZZLE Keep an EYE

5 persons standing in queue with different age group two years ago their average age will
be X and 6th person joined with them; hence the current average age has become Y. Find the
age of seventh person?

Solution

average age at present = X-2
and after the joining of 6th person average = Y
so 5(X-2)+ K = 6Y
so K = 6Y-5(X-2)


Like manish sir answer on facbook.

Asked In TCS Submited By-- ravi agarwal (1 year ago)

Puzzle Status: Solved

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DIPIN  (1 year ago)

Seventh person can have any age. It will not affect the average age of 6 persons in the group.

I think some data is missing.

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