Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 2)
2.
The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
Answer: Option
Explanation:
Let the ages of children be x, (x + 3), (x + 6), (x + 9) and (x + 12) years.
Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50
5x = 20
x = 4.
Age of the youngest child = x = 4 years.
Discussion:
102 comments Page 6 of 11.
Basavaraj Marapur said:
1 decade ago
Take youngest child = x.
So, (x-12) + (x-9) + (x-6) + (x-3) + x = 50.
5x-30 = 50;
5x = 20;
x = 4.
So youngest child is ---> 20;
So, (x-12) + (x-9) + (x-6) + (x-3) + x = 50.
5x-30 = 50;
5x = 20;
x = 4.
So youngest child is ---> 20;
Sudheer said:
1 decade ago
Let x+(x-3)+(x-6)+(x-9)+(x-12)=50
5x-30=50
5x=80
x=16
is this correct or not?
if it is wrong then explain the reason..
5x-30=50
5x=80
x=16
is this correct or not?
if it is wrong then explain the reason..
Ishu Subham said:
1 decade ago
Let the ages be (x-6), (x-3), (x), (x+3), (x+6).
then sum of ages = 5x
=> 5x = 50
x = 10
youngest = x-6
=4
then sum of ages = 5x
=> 5x = 50
x = 10
youngest = x-6
=4
Prasanna said:
10 years ago
Average/total number.
A + B + C + D + E/5 = 50.
50/5 = 10.
C = 10.
10 - 3 = 7.
7 - 3 = 4 -> YOUNGEST ONE'S AGE IS 4yrs.
A + B + C + D + E/5 = 50.
50/5 = 10.
C = 10.
10 - 3 = 7.
7 - 3 = 4 -> YOUNGEST ONE'S AGE IS 4yrs.
Satheesh said:
1 decade ago
It seems these calculation are merely mathematical wise not logic wise. Whats the relation between X and younger child?
NANDAN said:
2 decades ago
If 1st child age x then 3year gap for next child so x+3
5 children = 5x
5x+30=50
5x=50-30
5x=20
x=20/5
x=4
so 4 years
5 children = 5x
5x+30=50
5x=50-30
5x=20
x=20/5
x=4
so 4 years
Mahesh said:
1 decade ago
In the question its mentioned that "the intervals of 3 years each is 50 years" it means each child having 50 rit.
MOSES AHIMBISIBWE said:
7 years ago
The answer is 4, because if you get 4+7+10+13-16 =50. Following their 3 years interval. Therefore, 4 is correct.
Srujan said:
1 decade ago
@kumuda sub x value in all then u will get 4,7,10,13,16.
So among them d least age is 4 i.e younger one.
So among them d least age is 4 i.e younger one.
Cherry said:
2 decades ago
x+3x+6x+9x+12x=50
x(1+3+6+9+12)=50
x=50/31
x=1.64
If we do the same like this what is that x mean?
x(1+3+6+9+12)=50
x=50/31
x=1.64
If we do the same like this what is that x mean?
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