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प्रश्न
Find the sum of all natural numbers lying between 100 and 1000, which are multiples of 5.
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उत्तर
The natural numbers lying between 100 and 1000, which are multiples of 5, are 105, 110, … 995.
Thus, the sum of all natural numbers lying between 100 and 1000, which are multiples of 5, is 98450.
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