Answers

2014-12-11T08:38:26+05:30
No of members =420
New members are 1-3/7=4/7 of total member
Number of new members =420*4/7=240
Number of new girl members =240*2/3=160
     Number of new boy member=240-160=80
 80 members are boys.
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2014-12-12T05:29:31+05:30
Given = There are 420 members in the soccer club.
3/7 are long-time members and the rest are new.
2/3 of the new members are girls.

Now , A.T.Q

New members = 1- 3/7
                       = 7 - 3 / 7
                       = 4/7

Total number of new members =420 
× 4/7
                                        = 60 
× 4
                                        =240

Number of new girl members =240
×2/3
                                              = 80 
× 2
                                              =160
    

Number of new boy members = Number of new members - number of new girls

Number of new boy members = 240 - 160
                                               = 80.
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