:
1.
5%, 11%, 7%. , 210 . ., 55 . . .
1) 210 . ., 210 + 210*11/100 = 233,1 . .
2) () 55 . ., 55+ 55*5/100 = 57,75 . .
. (107%) (105%), , .
2.
, , 10%, 25%, 5%, 4%. ( 1 000 .).
1) (-10%), (+25%), (+4%) (+5%), (-10 + 25 (+4) (+5))% = 6%.
2) : (1000*106)/100= 1 060 .
3.
() () . :
, . . | 60 000 | 68 400 | 72 000 |
, . |
1)
, . . | 60 000 | 68 400 | 72 000 | |
, . | ||||
( ), . . | =/ | 84,444 | 87,805 |
2) () .
=*
∆1 = ∆* = (87,805 75)*800= 10 244 . . - ,
∆2 = . *∆ = 87,805*(820-800) = 1 756,1 . . - ,
∆ =∆1+∆2= 10 244 + 1 756,1 = 12 000,1 .. - .
3) () .
=*
∆1 = ∆* = (87,805 84,444)*810= 2 722,41 . . - ,
∆2 = *∆ = 87,805*(810-800) = 878,05 . . - ,
∆ =∆1+∆2= 2 722,41 + 878,05 = 3 600,46 . . - .