Series: Subject: Topic:
Question: 62 of 380

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.
Asked by: adityak | Member Since Nov-2010 | Asked on: Dec 6th, 2010

View all questions by adityak

Showing Answers 1 - 3 of 3 Answers
Thamizh Mani

Answered On : Dec 26th, 2010

View all answers by Thamizh Mani

Let x= Total age of 6 people. x/6=43x=258   y= age of 7th man. (x+y)/7 =45; substitue x in this eqn. then y=57

Login to rate this answer.

Answered On : Jan 3rd, 2011

View all answers by lavanya.rjs

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.

Login to rate this answer.

Answered On : Jan 4th, 2011

View all answers by lavanya.rjs

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.

Login to rate this answer.

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

Related Open Questions



twitter fb Linkedin GPlus RSS


Interview Question

 Ask Interview Question?


Latest Questions

Interview & Career Tips

Get invaluable Interview and Career Tips delivered directly to your inbox. Get your news alert set up today, Once you confirm your Email subscription, you will be able to download Job Inteview Questions Ebook . Please contact me if you there is any issue with the download.