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Q.

What is the value of the product 0.9×100  ?


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a

0.9

b

0.09

c

9

d

90  

answer is D.

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Detailed Solution

Given, 0.9×100.  
To multiply a decimal number by 100 we move the decimal point within the number to the right by two places.
Then we get,
0.9×100= 9 10 ×100  
⇒0.9×100=9×10 ⇒0.9×100=90  
Therefore, the value of the expression 0.9×100=90.   So, option (4) is correct.
 
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