The average of the ages of three persons A, B and C is 45 years and the average age of A, C and D is 51 years. If the age of D is 56 years, what is the age of B?
1
35 years
2
38 years
3
36 years
4
36.5 years
The average of the ages of three persons A, B and C is 45 years and the average age of A, C and D is 51 years. If the age of D is 56 years, what is the age of B?