 <translate> Tambaya: Antony, Ben, da Charles kowannensu ya yi ƙoƙari ya ci nasara a wasan carnival. Idan yiwuwar su na yin nasara su ne 1/5, 3/8, da 2/7, daidai, menene yiwuwar cewa daidai biyu daga cikin 'yan wasan uku za su ci nasara amma ɗaya zai yi hasara? Zaɓuɓɓuka: (A) 3/140 (A) 3/140 (B) 1/28 (C) 7/40 (D) 3/35 (E) 5/40 Hanyoyin hankali: P = P ((A ya ci nasara, B ya ci nasara, C ya yi asara) + P ((A ya ci nasara, B ya yi asara, C ya ci nasara) + P ((A ya yi asara, B ya ci nasara, C ya ci nasara) = 1/5*3/8*5/7 + 1/5*5/8*2/7 + 4/5*3/8*2/7 = 7/40. <ibo> Ajụjụ: Antony, Ben, na Charles na-agbalị n'otu n'otu iji merie n'egwuregwu a na-eme n'ememme. Ọ bụrụ na ohere onye ọ bụla n'ime ha nwere inwe ihe ịga nke ọma bụ otu ụzọ n'ụzọ ise, atọ ụzọ n'ụzọ asatọ, na abụọ ụzọ n'ụzọ asaa, nke ọ bụla n'ime ha, olee otú o si bụrụ na mmadụ abụọ n'ime mmadụ atọ ahụ ga-emeri, ma otu onye ga-emeri? Nhọrọ: (A) 3/140 (B) 1/28 (C) 7/40 (D) 3/35 (E) 5/40 Mgbasa-uche: P = P ((A na-emeri, B na-emeri, C na-efunahụ) + P ((A na-emeri, B na-efunahụ, C na-emeri) + P ((A na-efunahụ, B na-emeri, C na-emeri) = 1/5*3/8*5/7 + 1/5*5/8*2/7 + 4/5*3/8*2/7 = 7/40. 