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What is the following percentages of 102? 32, 30 and 40?

 Sep 12, 2017
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The question is

What per cent of  102  is 32   ?      that is

x per cent of  102   is 32         Remember that per cent means  hundreths, also when we say   'of'  we multiply. A half  'of' something  is 1/2    X   something.   So to write 

x  per cent of 102 is 32       as an equation  ,  we write

 

x/100            X         102    = 32         ( the capital X  is a multiplcation sign,don't confuse with little x )

 

re-arranging

x/100    = 32/102        (divide both sides by 102)

x = 100  X  (32/102)       =   31.372.

 

 

Same method for the other two,try for yourself.

 Sep 12, 2017

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