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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?
Read Solution (Total 6)
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- 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 - 14 years agoHelpfull: Yes(8) No(2)
- 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 - 14 years agoHelpfull: Yes(4) No(0)
- x+12=6*43
x=246
7*45-246=69
ans=69 - 14 years agoHelpfull: Yes(2) No(0)
- 69
- 14 years agoHelpfull: Yes(1) No(0)
- 69
- 14 years agoHelpfull: Yes(1) No(0)
- 18yrs
- 14 years agoHelpfull: Yes(1) No(19)
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