The sum of ages of a daughter and mother is 63 yr. Four years back, the mother's age was 4 times that
of daughter's age at that time. What is the present age of the mother?
Father is aged three times more than the age of his son Rohit. After 8 yr, he would be two and a half of
Rohit's age. After further 8 yr, how many times would he be of Rohit's age?
A person’s present age is two fifth of the age of his
mother. After 8 years, he will be one-half of the age
of his mother. What is the present age of his mother?
Ajith is three times older than Babita. Chetu is half the age of Das. Babita is older than Chetu. Which
of the following additional information is needed to estimate the age of Ajith?
I. Chetu is 10 yr old.
II. Both Babita and Das are older than Chetu by the same number of years.
Sum of ages of Anu and Bhanu is 10 years more than the sum of ages of Bhanu, Chanu, and Dhanu. The average age of Chanu and Dhanu is 19 years. Find the average age of Anu and Dhanu if Dhanu is 10 years
elder than Chanu.
Let the ages be:
Anu = \(A\), Bhanu = \(B\), Chanu = \(C\), Dhanu = \(D\)
Given:
1) \(A + B = 10 + B + C + D \Rightarrow A = 10 + C + D\)
2) Average age of Chanu and Dhanu = 19
\(\Rightarrow \frac{C + D}{2} = 19 \Rightarrow C + D = 38\)
3) Dhanu is 10 years elder than Chanu:
\(D = C + 10\)
Substitute \(D\) in \(C + D = 38\):
\[
C + (C + 10) = 38 \Rightarrow 2C = 28 \Rightarrow C = 14
\]
\[
D = 14 + 10 = 24
\]
Now, \(A = 10 + C + D = 10 + 14 + 24 = 48\)
Average age of Anu and Dhanu:
\[
\frac{A + D}{2} = \frac{48 + 24}{2} = \frac{72}{2} = 36
\]
Answer: The average age of Anu and Dhanu is 36 years.
Rakesh says to Mahesh, “I am as old as you were when I was one-third as old as you are.” If the sum of their ages is 60 years, find the present age of Mahesh (in years).
\[
\text{Let Rakesh's age} = R,\] \[ \text{Mahesh's age} = M
\]
\[
R + M = 60 \quad \cdots (i)
\]
From the statement:
Rakesh says, "I am as old as you were when I was one–third as old as you are."
That means: when Rakesh was \( \tfrac{1}{3}M \), Mahesh's age was \( R \).
So, time passed:
\[
R - \tfrac{1}{3}M
\]
Then Mahesh's age at that time:
\[
M - (R - \tfrac{1}{3}M) = R \quad \cdots (ii)
\]
Now solve equation (ii):
\[
M - R + \tfrac{1}{3}M = R
\]
\[
\tfrac{4}{3}M = 2R
\]
\[
2M = 3R \quad \Rightarrow \quad M = \tfrac{3}{2}R
\]
Substitute in (i):
\[
R + \tfrac{3}{2}R = 60
\]
\[
\tfrac{5}{2}R = 60 \quad \Rightarrow \quad R = 24
\]
\[
M = \tfrac{3}{2} \times 24 = 36
\]
\[
\boxed{\text{Mahesh's present age = 36 years}}
\]
Reena met Natasha’s children. Rahul said,
“The square of my age plus the cube of my sister’s age is 7148.”
Preeti said,
“The square of my age plus the cube of his age is 5274.”
In
which year was Arjun born?
Arjun at present is 25 years younger
to his mother. Arjun’s brother, who was born in 1964, is 35 years younger to
his mother.
The average age of husband and wife was 22 years when they were married five years back. What is the present average age of the family if they have a three year old child?
There are four brothers Alan, Bob, Carl and Dave. Dave is two years older than Bob. Bob is one year
younger than Carl. Alan, who is 34, is two years younger than Carl. Who is the oldest?
When Rajeev was born his father was 32 years older than his brother and his mother was 25 years
older than his.sister. If Rajeev's brother is 6 years older than Rajeev and his mother is 3 years
younger than his father, how old was Rajeev's sister when he was born?
A person's present age is two-fifth of the age
of his mother. After 8 years, he will be one
half of the age of his mother. What is the
present age of the mother?
At an IIM entrepreneurship summit, two young founders - Karan and Deepak -
introduced their startup. In their quirky opening, they said: "The product of our ages is 240.
And just like in our startup strategy, twice Deepak's age is 4 years more than Karan's age."
How old was Deepak two years ago?