How many times of 30 must be added together to get a sum equal to 30⁷

Solution:

We have to find the number of times 30 must be added together to get a sum equal to 30⁷

Let x be the number of times 30 must be added.

So, 30 × x = 30⁷

On rearranging,

x = 30⁷/30

For any non-zero integers ‘a’ and ‘b’ and whole numbers m and n,

a^m ÷ aⁿ = a^{m - n}

Considering 30⁷/30,

Here, a = 30, m = 7 and n = 1

m - n = 7 - 1 = 6

a^{m - n} = 30⁶

So, 30⁷/30 = 30⁶

x = 30⁶

Therefore, number of times 30 must be added is 30⁶.

✦ Try This: How many times of 10 must be added together to get a sum equal to 10⁶

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 13

NCERT Exemplar Class 7 Maths Chapter 11 Problem 77

How many times of 30 must be added together to get a sum equal to 30⁷

Summary:

30⁶ times of 30 must be added together to get a sum equal to 30⁷

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