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:
101 comments Page 4 of 11.
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.
(87)
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.
(29)
Krina said:
7 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:
6 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?
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:
7 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?
Rupesh Kumar Yadav said:
3 years ago
Sum of the present ages of H,W and C = 27 + 3 = 30 So, 30 * 3 = 90Years.
Sum of the present ages of H,W and C = 20 + 5 = 25 So, 25 * 2 = 50Years.
Hence,
Husband of presents age = (90-50)years.
= 40Years.
Sum of the present ages of H,W and C = 20 + 5 = 25 So, 25 * 2 = 50Years.
Hence,
Husband of presents age = (90-50)years.
= 40Years.
(53)
Srinivas said:
1 decade ago
husband+wife+child =3 years ago =27 present age =30 (27+3=30)
wife and child = 5 years ago =20 present age=25 (20+5=25)
h+w+c =3*30=90 -- I
w+c =2*25=50 --II
substract(I-II) 90-50=40 year
wife and child = 5 years ago =20 present age=25 (20+5=25)
h+w+c =3*30=90 -- I
w+c =2*25=50 --II
substract(I-II) 90-50=40 year
Asad Ullah said:
7 years ago
The average age of three persons is 18. If two of them are included then the average age becomes 20. If the age of 1st is 17 then find the age of the remaining persons.
Can anyone tell me?
Can anyone tell me?
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