The sum of the multiplication table of natural number ‘n’ is given by 55 × n. Find the sum of table of 19.

Question

Sum

Solution

Given, the sum of multiplication table of n natural numbers = 55 × n

Sum of table of 19 = 55 × 19 ...[Put n = 19]

= 1045

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Q 88. (c)Q 88. (b)Q 89. (i)

Chapter 10: Algebraic Expressions - Exercise [Page 327]

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NCERT Exemplar Mathematics Exemplar Class 7

Chapter 10 Algebraic Expressions
Exercise | Q 88. (c) | Page 327

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