Wednesday, 3 April 2013

1. Write the following in decimal form and say what kind of decimal expansion each has

Question 1. Write the following in decimal form and say what kind of decimal  expansion each has
 
Solution: (i)36/100  = 0.36  and it is terminating.
(ii)  by long division method we get 

 
And 
(iii) 1/11 = 0.090909090……….  
So it is a non terminating number 
 
4.125 is a terminating number 
(iv)

 
We are getting  3/13 = 0.230769230769230769…..
There is repetition of 230769 so it is a non terminating number 
(v)

 
2/11 = 0.18181818 ……..
There is repartition of 18 so it is not terminating number 
(vi)

 
329/400 = 0.8225
So it is terminating number

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