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, 2 .45., . 3 . 05 . 2 . 45 .; 20 . .
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- ( 3-6 ) . , 2 ., ( 45 ): 43 * 100
=43 *100/ 45 95,3%
- , ( 4) . , 29 . : 29 *100
=29 *100 /45= 64,5
, 100%. , , . , 70-80%. , -, , , , 50% .
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