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Answer: 56
$\text{ 1 year = 12 months }\approx\text{ 52 weeks}$ and $1 \text{ month }\approx\text{ 30 days}$
$\begin{split}\text{Aroon's age}&=\text{50 years} + \underbrace{\text{50 months}}_{\text{4 years 2 months}} + \underbrace{\text{50 weeks}}_{\text{almost a year}} + \underbrace{\text{50 days}}_{\text{almost 2 months}}\\
&\approx \text{54 years + almost a year + 3 or 4 months}\\
&\approx \text{55 years and a bit}
\end{split}$
So Aroon will be $56$ on his next birthday.
50, 50, 50 and 50
Age 11 to 14
ShortChallenge Level 
Answer: 56
$\text{ 1 year = 12 months }\approx\text{ 52 weeks}$ and $1 \text{ month }\approx\text{ 30 days}$
$\begin{split}\text{Aroon's age}&=\text{50 years} + \underbrace{\text{50 months}}_{\text{4 years 2 months}} + \underbrace{\text{50 weeks}}_{\text{almost a year}} + \underbrace{\text{50 days}}_{\text{almost 2 months}}\\
&\approx \text{54 years + almost a year + 3 or 4 months}\\
&\approx \text{55 years and a bit}
\end{split}$
So Aroon will be $56$ on his next birthday.
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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