• # question_answer The marks of six boys in a group as 48, 59, 87, 37, 78 and 57. What are the average marks of all six boys? A)  62                 B)       61 C)  64                    D)       63

Required average marks       $=\frac{48+59+87+37+78+57}{6}$ $=\frac{366}{6}=61$