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प्रश्न
The sum of the multiplication table of natural number ‘n’ is given by 55 × n. Find the sum of table of 7.
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उत्तर
Given, the sum of multiplication table of n natural numbers = 55 × n
Sum of table of 7 = 55 × 7 ...[Put n = 7]
= 385
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संबंधित प्रश्न
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