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数学题(英文)

a class total gt 48 ppl.
; Z& `0 R6 y" E& K( q: y+ i/ ?+ b6 G6 ppl din join any club
% c7 e& Q$ j) @* G+ |1 Y7 g) p! H1/4 of the student in de clas join badminton club n computer club.( U  @* H( k. i% S
the number of badminton club member which is not computer club member is 2 times de member of computer club.
/ x- Q1 j1 E4 Ghow many ppl in de clas join badminton club???
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