Ruby: at given an index in a 2d array, replace the first element in the subarray at that index -


I have a 2D array that looks: 

  array = [["apple" I want to change some strings in the code like "," [orange ", 12], [" peach ", 15], [" lemon ", 7]]  / code>, (except the second code in  array  unchanged) with the help of another 2d array is included in the string that I want to use as a replacement and in other case there is an index. Want to            
 code> etc. In the first position of the array on index 1, put the  blanket . Viewing the output  
  Output Anyone can help me: ["Apple", 10], ["blanket", 12], ["Peach", 15], ["Footwear ", 7]]   
 this?   
 
 
 should do the following :  
  replacements.each {| r | array [r [1]] [0] = r [0]}

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