Josh spends a total of $5.5 buying A items in the convenience store. If each of the items is either a 5 cents single bubblegum, or a 50 cents bubblegum pack, then A may be which of the following?
Answers:
A) 99
B) 100
C) 101
D) 112
E) 113
A items in the convenience store$5.5 = 550 cents   550 = 50a + 5b   =&gt;110 = 10a + b   b = 110 - 10a = 10(11-a)   Hence b is even and multiple of 10.   Possible values of b:   b = 10,20,30,40,50,60,70,80,90,100   a = 11,9,8,7,6,5,4,3,2,1   The total (a+b) is 21,29,38,47,56,65,74,83,92,101   The only option is 101. Hence 101.
<result>C</result>
Josh spends a total of $5.5 buying A items in the convenience store. If each of the items is either a 5 cents single bubblegum, or a 50 cents bubblegum pack, then A may be which of the following?