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Age Problem
in a market 4 men are standing. the average age of the four before 4 years is 45, after some days one man is added and his age is 49 ,what is the average age of all?
Read Solution (Total 13)
-
- 45*4=180
after 4 years total age= 16+180=196
sum of ages of 5 men=196+49 = 245
av=49 - 13 years agoHelpfull: Yes(14) No(0)
- Ans : 49
Exp: avg age of 4 after four yrs will only add plus 4 to their earlier avg.
i.e avg =45+4=49
Now 1 is added aged 49 .
so,49*4=196 and 196+49=245, . .245/5=49 . - 13 years agoHelpfull: Yes(5) No(1)
- ans is 29...
x-16/4=45..thusx=196..yhen 196+49/5=29 - 13 years agoHelpfull: Yes(4) No(1)
- let age of 4 persons be x,before 4yrs their ages would be x-14, so ((x-16)/4)=45
solve for x,we get x=196, now for fifth person (196+49)/5=49, 49 is the ans - 13 years agoHelpfull: Yes(3) No(1)
- 4 years before,
av age=45
total age=45*4=180
after 4 yrs,
total age=4*(45+4)=4*49=196
by adding 49,
average age=(196+49)/5=49 - 13 years agoHelpfull: Yes(1) No(0)
- 49
avg age before 4 yrs is 45 so present avg age will be 45+4=49
after adding one man of age 49 their avg age will be 49 - 13 years agoHelpfull: Yes(1) No(0)
- Before 4 years, avg age is 45, so today it's 49. now adding a 49 aged person keeps the avg same! so ans is 49 only..
- 13 years agoHelpfull: Yes(1) No(0)
- befoe 4 year age total
45*4=180
after that
180+16=196
196+49=245
so
245/5=49
so
ans:49 - 13 years agoHelpfull: Yes(1) No(0)
- before 4 yrs: x/4=45;
x=45*4=180
at now (16+180)/4=49
196+49=245
245/5=49 - 13 years agoHelpfull: Yes(1) No(0)
- 4 yrs ago avg age - 45
nw avg age is 45 +4=49
whn new persn added 49 + 49 whole sivided by 2 = 49 - 13 years agoHelpfull: Yes(0) No(0)
- sory its 49 ..
- 13 years agoHelpfull: Yes(0) No(0)
- suppose 4 men are a,b,c,d.
present average age will be 45+4
(a+b+c+d)/4=49
a+b+c+d=196
now
suppose e added with age=49
so average age will be
(a+b+c+D+E)/5
(196+49)/5
245/5
=49 ans. - 9 years agoHelpfull: Yes(0) No(0)
- Ans:49
present age (45+4)=49
before the man added 49*4=196
one man added 49*5=245
avg age of all (245-196)=49 - 9 years agoHelpfull: Yes(0) No(0)
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