# Find the age of Seventh Person

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.

#### Thamizh Mani Profile Answers by Thamizh Mani

• Dec 26th, 2010

Let x= Total age of 6 people. x/6=43
x=258

y= age of 7th man.
(x+y)/7 =45; substitue x in this eqn. then y=57

#### lavanya.rjs Profile Answers by lavanya.rjs

• Jan 3rd, 2011

19 yrs.

Present avg age of 6 persons is 45,
After 2 yrs the avg age of 6 persons will be 47.
To make it 43 subtract 4 from each.
Hence 4*6=24 is left , this is to be added to 7th person's age to make the avg 43
so,  24 +  7th persn's age = 43,
Therefore, 7th person's age= 43-24=19.

#### lavanya.rjs Profile Answers by lavanya.rjs

• Jan 4th, 2011

avg age of 6 persons after 2 yrs  will be 43,
hence present avge age of 6 persons should be 41,   (= 246/6)

when 7th person has joined  avg is 45,   (=315/7)

hence 7th person's age will be   (315- 246)= 69yrs.

#### Anna

• Oct 29th, 2016

Its totally not 19. Its supposed to be bigger. It can only be 52 or 69. 19 is too far

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