Aptitude - Average - Discussion

Just find their present ages.

h + w + c /3 = 27.
h + w + c = 27 × 3 = 81.
(But this total sum was 3 years ago, to find today's total sum, add 3 years of husband, wife and child in 81, 3 + 3 + 3 =9).

h + w + c =81 + 9 = 90 -----> A.

In the same way,
w + c /2 = 20
w+c = 40 ( but it was 5 years ago, so add 5 to both wife and child total of 10).

w + c = 40 + 10 =50 ------> B
We got our A and B equations; if we combine them, we will find our answer.

h + 50= 90 ( we have put equation B in A),
h = 90 - 50,
h = 40,
So, the husband's age is 40.

This is ramya from vizag,can i solve the problem as below as per question,
present ages of hus=h;wife=w;child=c;
---> 3 years ago it was said the avg ages of the hus,wife,child was 27 years.so,
((h-3)+(w-3)+(c-3))/3=27;
so solving it i got h+w+c=90;--->(a)
and given 5 years ago wife and childs age avg=20years so,
i took((w-5)+(c-5))/2=20;solving it i got w+c=50;-->(B)
on solving (a)&(b) i got h age as 40years,can this procedure be correct??
please do reply me?

@Varshithtunuguntla.

How obtained here 90 and 40. How did the multiplication?

Can you tell me?

20+5 =25 today's average of w+child.

H+w+child is 27 +3 = 30 todays all average.
Difference is 5, So 5*2+ new avg30 = 40.

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?

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.

H+W+C=81 is sum three year ago and W+C=40 five year ago. So five year ago it is wife and child sum is 40. Each year a 1 age will be added for a person. So W+C=44 after two years. (now W+C=44 is three year ago) so H+44 = 81.

H = 37 three year ago. So at present his age is 37+3 = 40 = H.

Present age of h+w+c = (27+3)*3 = 90.

Present age of w+c = (20+5)*2 = 50.

h's age = 90-50 = 40.

1. Av age of H+W+C=27.

Three years back their total age, we multiply 27 by 3 = 81 years.

Three years later age increased for three members = 3*3 = 9.

2. Current age of H+W+C = 90.

3. Av age of W+C = 20.

Five years back their total age, we multiply 20 by 2 = 40.

Five years later age increased for two members = 5*2 = 10.

4. Current age of W+C = 50.

5. Husband age = Current age of H+W+C-W+C = 90-50 = 40 years.

Average = sum/no of count.

27 = h + w + c/3.
h + w + c = 81.
20 = w + c - 1/2.
w + c = 41.
h + 41 = 81.

H = 40.