数学题(英文)

a class total gt 48 ppl.% Z6 K) v. Q' H3 g) z1 m5 G
6 ppl din join any clubtvb now,tvbnow,bttvb8 r3 d1 f! m) ]" k
1/4 of the student in de clas join badminton club n computer club.5.39.217.761 V- v0 F$ Z2 N$ O% a% Q6 Z/ c+ i
the number of badminton club member which is not computer club member is 2 times de member of computer club.! S) y1 k$ g+ O! ]7 ~2 o {
how many ppl in de clas join badminton club???

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genzo2106

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發表於 2007-9-12 01:49 PM | 只看該作者

28 students are badminton club members only.5.39.217.76. N" H1 O9 E0 c$ |% d% G

2 students are in computer club only.
6 R- a! d$ W8 T& [
12 students are in both badminton and computer club.
tvb now,tvbnow,bttvb) C7 \, ]. z+ ]' n
therefore 28+2+12+6=48