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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 10.
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उत्तर
Given, the sum of multiplication table of n natural numbers = 55 × n
Sum of table of 10 = 55 × 10 ...[Put n = 10]
= 550
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संबंधित प्रश्न
Observe the patterns of digits made from line segments of equal length. You will find such segmented digits on the display of electronic watches or calculators.

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How many segments are required to form 5, 10, 100 digits of the kind −

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If the number of digits formed is taken to be n, the number of segments required to form n digits is given by the algebraic expression appearing on the right of each pattern.
How many segments are required to form 5, 10, 100 digits of the kind −

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