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Murad bought equal number of 20-paisa and 30 paisa stamps . If the total cost of the stamps was Tk. 10 , what was the total number of stamps that Murad bought?

Murad bought equal number of 20-paisa and 30 paisa stamps . If the total cost of the stamps was Tk. 10 , what was the total number of stamps that Murad bought? Correct Answer 40

Let, x is the number of 20 - poisa stamps. Then the number of 30 - poisa stamps is x too. Note that 10 taka = 1000 poisa. Therefore, we obtain the following equation - 20

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