Question

In standard form,$72$ crore is written as

• A. $72\times {10}^7$
• B. $72\times {10}^8$
• C. $7.2\times {10}^8$
• D. $7.2\times {10}^7$

Answer 1

The correct option is C

$7.2\times {10}^8$

Write the given number in standard form

Given number is $72$ crore.

We know that,

Any number can be expressed as a decimal number between $1.0$ and $10.0$ (including $1.0$) multiplied by a power of $10$. Such a form of a number is called its standard form or scientific notation.

Now,

$72$ crore is written as,

$\Rightarrow 72,00,00,000=7.2\times {10}^8$

Hence , in standard form$72$ crore is written as $7.2\times {10}^8$, so, option (C) is the correct answer.