
The total profit for the six months is:
\[ 55 + 60 + 70 + 95 + 100 + 95 = 475 \]
The average monthly profit is:
\[ \text{Average} = \frac{475}{6} = 79.17 \text{ lakhs} \]
The average monthly profit lies between 35 and 45 lakhs.





Arun’s present age in years is 40% of Barun’s. In another few years, Arun’s age will be half of Barun’s. By what percentage will Barun’s age increase during this period?