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:
35 years
40 years
50 years
None of these
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 2 of 11.

Bharani said:   5 years ago
Same question but find the wife age means how to solve?

Sumit said:   6 years ago
The avg of age of your parents are 35 and avg of age of three of yours is 8 less. What is your age?

Please anyone answer this with explanation.
(1)

Anant gavas said:   6 years ago
(H+W+C)/3 = 27+3(add 3 to get present data).
H+W+C = 27*3+3*3 = 90.

(W+C)/2 = 20+5(to get present data).
W+C = 20*2+5*2 = 50.

So (H+W+C)-(W+C) = 40 years.
(11)

Shasi kumar said:   6 years ago
Five years ago, the average age of the Ram family has 5 members including Ram was 29 years. Ram got married 3 years ago and his only child was born 2 years after marriage so that the present average age of family becomes 28 years. Find the age of a bride at the time of marriage?
(2)

Sayed Sirajunnisa said:   6 years ago
A family of six members bought a car 10 years ago, and had a road accident today, in which one of the family members died. The average age of the family at the time when they bought the car is same as of today. What was the age of the member who passed away?can anyone help me with this problem, I need solution to this Question.
(1)

Sanjay said:   6 years ago
Thanks for explaining @Ramya.

Sanya said:   6 years ago
The average age of a husband and a wife is 30. What is the wife's age if the husband's age is 40?

Can anyone solve this?

Ravikumara. said:   6 years ago
a)=(x+y+z)/3 = 27------> (1) given
=(x+y+z) =3*27=81------> (2) 3years back
=(x+y+z) =81+(3*3) =90------> (3) present age.

B) =(x+y) /2= 20------> (4) given
= (x+y) =2*20=40------> (5) 5years back age
= (x+y) =40+(5*2)=50------> (6) present age of wife and child.
= x+y+z =90
= 50+z=90
=90-50 = 40 = z------> Present husband age (Or)
eq-3 subtracting with 6 => 90-50 = 40 husband's present age.
(1)

SRIRAM said:   6 years ago
@All.

Take x, y, z intial age is 27 after three years it converted into 30. For three members it is 90.
Then 5 years back 20 years. Calculate with present age it is 25.

Now
X+Y+Z=(3*30)=90.
Y+Z=20(5 years back)Now =(25*2)=50,
Now equate it.
Y+Z cancelled,
X=90-50.
And X=40.

Anshal mishra said:   6 years ago
Thanks @Ramya.


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