a, b, c are non negitive integers such that 28a+30b+31c = 365. a + b + c = ?  Choose the correct option:  A) 22  B) 12  C) 88  D) 73  E) 92
In a calender,   Number of months having 28 days = 1   Number of months having 30 days = 4   Number of months having 31 days = 7   28 x 1 + 30 x 4 + 31 x 7 = 365   Here, a = 1, b = 4, c = 7.   a+b+c = 12   Answer:12
<result>B</result>
a, b, c are non negitive integers such that 28a+30b+31c = 365. a + b + c = ?