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Question
In standard form 72 crore is written as ______.
Options
72 × 107
72 × 108
7.2 × 108
7.2 × 107
MCQ
Fill in the Blanks
Solution
In standard form 72 crore is written as `bb(underline(7.2 xx 10^8))`.
Explanation:
We know that,
A number in standard form is written as a × 10k, where a is the terminating decimal such that 1 ≤ a ≤ 10 and k is any integer
So, 72 crore = 720000000 = 7.2 × 108.
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Notes
Here, power of 10 (i.e. k) is a positive integer equal to the number of places the decimal point has been shifted.
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