Final answer:
The fruit seller will earn ₹5380 after selling off all the remaining fruits.
Step-by-step explanation:
To calculate the money earned after selling off all the remaining fruits, we need to first subtract the percentage of rotten fruits from the total quantity of each type of fruit.
Then, we can multiply the remaining quantity of each fruit by their respective prices and sum up the values.
Let's calculate:
Number of remaining apples = 150 - (10% of 150)
= 150 - 15
= 135
Number of remaining bananas = 100 - (20% of 100)
= 100 - 20
= 80
Number of remaining watermelons = 80 - (5% of 80)
= 80 - 4
= 76
Total money earned = (Number of remaining apples * price per apple) + (Number of remaining bananas * price per banana) + (Number of remaining watermelons * price per watermelon)
Total money earned = (135 * ₹20) + (80 * ₹5) + (76 * ₹30)
Total money earned = ₹2700 + ₹400 + ₹2280
Total money earned = ₹5380