Time And Work

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• 1. A,B ?? ??????? 70 ???? ????? ??? B ??? ????
  ??? 34 ???? ??? ??? A ??? ????? ?????? ???? ?
• (1)11.2 ????
• (2)15.5 ????
• (3)20 ????
• (4)21 ????

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2.16 ?? ????? ?? 20 ?? ????? ???? ??? 25 ????
??????? ???? ????? ?? ???? 28 ?? ????? ??? 15 ??
????? ?????? ????? ??????? ????? (1)9 (2)11 (3)8
(4)10
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3. A ? B ??? ??? ???????? 12 ? 15 ??????? ???????
???? ????? ????? 1 ????? ????? ?????????? ????
??? ???? ??? A ????? ???? ???? ?????? ??? ?????
??? ???? (1)14????? (2)14????? (3)13 ?????
(4)13 ?????
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4. A? B ??? ??? ?????? 12 ???? ??????? ??? ??????
A,B ? C ?????? ???? ?????? ????? 8 ???? ??? ????
C ??? ????? ?? ???? ??????? ????? (1)12
???? (2)10 ???? (3)9 ???? (4)24 ????
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5. ???? ?????????? ??? ??? 62 ???? ??? ????? ???
?????????? ???? ???? ?????? ???? 60 ?? ??????
??????? ????? 32 ??? ?? ???? ?????? ????? 2/3
??? ??? ???? ???? ???? ?????? ?? ???? ????????
????? ???? ??? ????? ??????? ???
???? (1)28 (2)38 (3)40 (4)44
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6. A,B ??? C ??? ??? ???????? 20 ??? ,15 ??? ? 12
???? ??? ???? ????? A ?????? ????? ??? ???? ???
????? ????? ????? B ? C ???? ???? ???????
???? (1)14 (2)6 (3)8 (4)10
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7. A? B ??? ??? ?????? 30 ???? ??????? ???? ?????
?????? 20 ??? ?? B ????? ????? ??? ??? ??? A ????
????? ??? 20 ???? ??????? ???? B ??? ????? ??
???? ??????? ???? ???? ? (1)48 (2)50 (3)56 (4)60
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8. A,B ??? C ??? ??? ???????? 15,20 ? 30 ????
??????? ???? ????? ???? ?????? ???? 810 ????
????? ?????A ?? ??????? ????? ?????? B ?? ???????
?? ???? ? (1)90 ???? (2)190 ???? (3)270 ????
(4)360 ????
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9.16 ?? ??? ???? ??? 16 ???? ??????? ???? ?????
??? ???? ?????? 4 ??? ?? ??? 8 ?? ??? ???? ?????
???? ???? ??? ??????? ???? ??? ????? ????
?????? (1)10 ??? (2)6 ??? (3)8 ??? (4) ?????
????? ??
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10. ???? ?????? ??? ??? 25 ???? ??? ???? ?????
??? ???? ????? 6 ?? ?????? ?? ??? ??? ???? ??????
40 ???? ????? ??? ???? ?????? ???? ????? ????
?????? ???? (1)22 (2)20 (3)18 (4)16
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11. ??? 12 ?? ????? ? 16 ?? ???? ??? ??? ????
???? ??? 13 ?? ????? ? 24 ?? ???? ??? ????? 4
???? ??????? ??? ??? ?? ???? 7 ?? ????? ??? 10 ??
???? ?? ????? ??????? ????? (1)10 ???? (2) 8
???? (3) 12 ???? (4) 9 ????
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12. X ? Y ??? ??? ?????? 12 ????, Y? Z ??? ?????
?????? 15 ???? ??? Z ? X ?????? ????? 20 ????
??????? ???? ????? ??? ?????? ?????? ????? ???
??? ????? ?? ???? ??????? ???? (1)7 (2)8 (3)9 (4)
10
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13. X ? Y ??? ??? ???????? 12 ? 16 ???? ???????
???? ???? ?????? ??? ???? ??? ??? 3??? ?? X ???
???? ???? ????? Y ?? ???? ??????? ?????
(1)9 (2)10 (3)12 (4)15
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14. X,Y ? Z ??? ???? ??? ??? ??????? ???? 1058
???? ????? ?????? ????? ???? ??? X ? Y ??????
?????? 19/23 ??? ??? Y? Z ?????? 8/23 ??? ???????
??? ??? X ?? ???? ????? (1)680 (2)688 (3)690 (4)
682
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15. ???? ??? ??? ???? ??? 60 ???? ??????? ????
????? ??? ??? 8 ?? ??? ?????, ??? ????? ???????
???? 10 ??? ??? ?? ?????? ?????? ?? ?? ??? ??? ?
(1)40 (2)42 (3)45 (4)50
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