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Qbc place stadium has 16 gates. in ow many ways can you enter the stadium and leave the stadium:

a)by a different gate
b)by any gate

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#1 감탄사 Answered at 2013-03-01 12:23:59
a) 16*15 = 240

b( 16*16 = 256
#2ST pls ASAPAnswered at 2013-03-01 16:18:58
a)
16 *15 = 240

we can enter in 16 ways. we can exit in 15 ways. therefore answer is 16*15
b)

16*16 = 256

we can enter in 16 ways. we can exit in 16 ways. therefore answer is 16*16

#3kingfisherAnswered at 2013-03-03 07:37:44

a) by a different gate = 16 x 15= 240

b) by any gate = 16 x 16 = 256

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