the missing number is 55
Arm span is used used as a unit of measurement during the ancient times. As time goes by, people discontinued from using this method because every human being have their own unique measurement of every part of their body. This method 9f using arm span also gives inaccurate measurements which make the data it unreliable.
Total marbles: 20
Conditions:The are more yellow than blue.The GCF is 4.
The numbers less than 20 with greatest common factor (GCF) of 4 or multiple of 4 are:
4, 8, 12, 16
Pick two possible combinations of multiples of 4 whose sum is 20 and there are more yellow than blue:16 yellow and 4 blue ⇒ 16 + 4 = 2012 yellow and 8 blue ⇒ 12 + 8 = 20The least possible number of yellow marbles is 12 while the maximum possible number is 16.