• 1.3.7-masala.
  • Buxoro davlat universiteti




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    1.3.6-masala.Poyezdda 936 yo`lovchi bor edi.Agar erkaklar bolalardan 7 marta,ayollar esa 5marta ko`p bo`lsa,poyezdda qancha ayol bo`lgan?

    A) 320 B)350 C) 360 D)400



    Yechish: Poyezda bolalar soni x ta bo`lsin,u holda erkaklar soni 7x ta,ayollar soni 5x ta .Jami yo`lovchilar soni 936 ta ekanligidan foydalansak.

    x+7x+5x=936; 13x=936 ; x=72

    Poyezddagi ayollar soni 5x ga teng. Demak,5*72=360 ta ayollar bo`lgan.Javob:C

    1.3.7-masala.Zavodning uchta sexida 1872 ishchi ishlaydi.Birinchi sexda ikkinchi sexdagidan 5marta ko`p, uchinchi sexda birinchi va ikkinchi sexdagi ishchilarning soniga teng ishchi ishlaydi.Birinchi sexda qancha ishchi ishlaydi?

    A)760 B)730 C)780 D)820





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