Question

He average weight of a class of 15boys and 10 girls is 38.4 if the average weight of boys i s 40kg

Answer 1

Answer:

avg weight of girls is 36

Step-by-step explanation:

total weight of a class(15boys+10girls)=25*38.4=960

weight of boys                                      =15*40    =600

weight of girls                                       = 960-600=360

avg weight of 10 girls                           =360/10      =36