1. -13. . ( , ) - .. ., 1381( 762), 2015 . 2. 1. , 60 /, 39 . .
: 39 , . 1)39. = 39 3600 2) = = 60 39 3600 = 39 60 = 0,65 = 650 - .
: 650 . 3. 2. , 80 /, , 500 , 36 . . : 36 , . 1)36. = 36 3600 = 1
100 2) = = 80 1 100 = 0,8 = 800 - + . 3)800 500 = 300 - . : 300 .
4. 3. , 65 / 35 /. 700 . - , , , 36 . . : 36 , . 1)36. = 36 3600 =
1 100 2) 65 + 35 = 100 /- . 2) = = 100 1 100 = 1 = 1000 - . 3)1000
700 = 300 - . : 300 . 5. 4. , 90 / 30 /. 600 . - , , , 1 . . : 36 ,
. 1)1. = 1 60 2) 90 30 = 60 /- . 2) = = 60 1 60 = 1 = 1000 - .
3)1000 600 = 400 - . : 400 . 6. 5. 60 / , , , . , 20 , 30 /. . : .
, : , . 20 , , , . 1)20. = 20 3600 = 1 180 2) 60 + 30 = 90 /- . 2)
= = 90 1 180 = 0,5 = 500 - . : 500 . 7. 5. , 65 / , 5 / 30 . . : .
, : , . 30 , , , . 1)30. = 30 3600 = 1 120 2) 65 5 = 60 /- . 2) = =
60 1 120 = 0,5 = 500 - . : 500 . 8. 2013. . B13. . . . .
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