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2 answers:
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Answer:
38.25 kg
Step-by-step explanation:
Let the number of apples sold = x
Now, on the first hour he sold 15% of the apples i.e. he sold 0.15x kg of apples.
So, the remaining apples = x - 0.15x = 0.85x
Further, on the second hour he sold 20% of the remaining apples i.e. he sold 0.20 × 0.85x = 0.17x kg of apples.
Thus, the remaining apples = 0.85x - 0.17x = 0.68x
Then, on the third hour he sold 25% of the remaining apples i.e. he sold 0.25 × 0.68x = 0.17x kg of apples.
So, the remaining apples = 0.68x - 0.17x = 0.51x
Moreover, on the fourth hour he will sell 30% ( i.e. 5% more of 25% ) of the remaining apples i.e. he sold 0.30 × 0.51x = 0.153x kg of apples.
As, during the second hour, he sold 25.5 kg of apples.
Then, 0.17x = 25.5 i.e. i.e. x = 250
Hence, during the fourth hour, he will sell 0.153x = 0.153 × 250 = 38.25 kg of apples.