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प्रश्न
Find the sum of all natural numbers lying between 100 and 1000, which are multiples of 5.
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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