Question

8000 चे8.5% + m = 9000च 30% चे 4०%​

Answer 1

$8000 \times \frac{8.5}{100} + m = 9000 \times \frac{30}{100} \times \frac{40}{100} \\ \\ = > m = 1080 - 680 \\ \\ = > m = 400$

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