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I get it wrong

 

 Jul 18, 2020
 #1
avatar+26675 
+1

50p coins     are    n+7  

 

n         +    n-3      +     n+7      =    61

3n+4 = 61

n = 19                         20p coins are   n - 3          19-3 = 16 coins

                                                                                  the VALUE of 16  20p coins = 320p

                                                                                                                                =  £ ..... 

 Jul 18, 2020

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