Aptitude - Average - Discussion
Discussion Forum : Average - General Questions (Q.No. 8)
8.
The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is:
Answer: Option
Explanation:
Sum of the present ages of husband, wife and child = (27 x 3 + 3 x 3) years = 90 years.
Sum of the present ages of wife and child = (20 x 2 + 5 x 2) years = 50 years.
Husband's present age = (90 - 50) years = 40 years.
Discussion:
104 comments Page 4 of 11.
Sakshi said:
1 decade ago
Let the present age of husband,wife and child be x yrs
3 yrs ago their was x-3
x-3=27
x=30
the sum of their age is 90
5 yrs ago the avg age of wife n child was 20yrs
their present avg age=20+5=25
so,the sum of their present age is 25*2=50
the present age of husband =90-50=40
3 yrs ago their was x-3
x-3=27
x=30
the sum of their age is 90
5 yrs ago the avg age of wife n child was 20yrs
their present avg age=20+5=25
so,the sum of their present age is 25*2=50
the present age of husband =90-50=40
Ramya said:
8 years ago
When I have married 10 years ago my wife is the 6th member of the family. Today my father died and a baby born to me. The average age of my family during my marriage is same as today. What is the age of Father when he died?
Can anyone solve this question in simple way?
Can anyone solve this question in simple way?
Ameer said:
7 years ago
Thanks for providing the easiest solution @Loverboy.
3 years ago, their avg is 27.
((h-3) + (w-3) + (c-3) ) /3 = 27.
h+w+c = 90. (present).
5 years ago w & c is 20.
((w-5) + (c-5) ) /2 = 20.
w+c=50. (present).
(h+w+c) - (w+c) = 40.
h = 40 years.
3 years ago, their avg is 27.
((h-3) + (w-3) + (c-3) ) /3 = 27.
h+w+c = 90. (present).
5 years ago w & c is 20.
((w-5) + (c-5) ) /2 = 20.
w+c=50. (present).
(h+w+c) - (w+c) = 40.
h = 40 years.
(1)
Shah said:
1 decade ago
(3x27)+3 [ 27 is avg. age x 3 family members + 3( ie number years ago) ... Ans comes to 85 years.
(2x20)+5 [ 20 is avg. age of child and mother x 2 + 5( ie number years ago ... Ans comes to 45 years.
Now 85-45 = 40 years.
Is it correct way of solving ?
(2x20)+5 [ 20 is avg. age of child and mother x 2 + 5( ie number years ago ... Ans comes to 45 years.
Now 85-45 = 40 years.
Is it correct way of solving ?
Saimadhav Thottala said:
2 years ago
Husband + Wife + Child = 27 (years) + 3 (years ago) => 30 x 3 (Members) => 90 years.
And;
Wife + Child = 20 (years) + 5 (years ago) => 25 x 2 (Members) => 50 years.
So,
Husband of present age = ( 90-50 )years.
= 40 years.
And;
Wife + Child = 20 (years) + 5 (years ago) => 25 x 2 (Members) => 50 years.
So,
Husband of present age = ( 90-50 )years.
= 40 years.
(100)
Dptt said:
2 years ago
{(H+W+C)/3} -3 = 27 [(-3) is for 3 years ago].
(H+W+C)/3=30.
H+W+C=90 ---> eqn (1)
{(W+C)/2} -5 = 20 [(-5)is for 5 years ago]
(W+C)/2= 25.
W+C=50 ------> eq(2)
Substitute eq(2) in eq(1),
H+50 =90
so, H = 40 years.
(H+W+C)/3=30.
H+W+C=90 ---> eqn (1)
{(W+C)/2} -5 = 20 [(-5)is for 5 years ago]
(W+C)/2= 25.
W+C=50 ------> eq(2)
Substitute eq(2) in eq(1),
H+50 =90
so, H = 40 years.
(31)
Krina said:
8 years ago
Can anyone please help me with this question?
The average of a couple was 24 years when the child was just born. What will be the age of the father when the child reaches to the age of the mother when she gave him the birth?
The average of a couple was 24 years when the child was just born. What will be the age of the father when the child reaches to the age of the mother when she gave him the birth?
Rida akram said:
7 years ago
A person has a wife and three children. The average age of his parents is 70 which is 40 to his age and his wife is 15 from the average age of her children. What is the average age of the whole family?
Can anyone solve this?
Can anyone solve this?
(1)
Muskan said:
7 years ago
The average age 3 years ago = x+y+z/3 = 27,
Age of wife and son 5 years ago is x-2+y-2/2 = 20,
Hence x+y = 36.
36+z/3 = 27,
z=45.
Hence present age should be 45+3 which is 48.
Can someone tell me why this is wrong?
Age of wife and son 5 years ago is x-2+y-2/2 = 20,
Hence x+y = 36.
36+z/3 = 27,
z=45.
Hence present age should be 45+3 which is 48.
Can someone tell me why this is wrong?
(1)
Deeksha said:
8 years ago
The age of mother and father when the child was just born is 24/2=12.
When the child reaches to the age of the mother means when it will reach 12 years,
Father age is 12+12=24.
Can anyone say is this answer is correct?
When the child reaches to the age of the mother means when it will reach 12 years,
Father age is 12+12=24.
Can anyone say is this answer is correct?
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