Реши неравенства с помощью уравнений 48:a < 8

<span>3969 ÷ 247 = 16.(068825910931174089)</span>

<span><span>-3969247</span><span>247 16.(068825910931174089)</span><span>-1499</span><span>1482</span><span>  -1700</span><span>  1482</span><span>   -2180</span><span>   1976</span><span>    -2040</span><span>    1976</span><span>      -640</span><span>      494</span><span>      -1460</span><span>      1235</span><span>       -2250</span><span>       2223</span><span>         -270</span><span>         247</span><span>          -2300</span><span>          2223</span><span>            -770</span><span>            741</span><span>             -290</span><span>             247</span><span>              -430</span><span>              247</span><span>              -1830</span><span>              1729</span><span>               -1010</span><span>                988</span><span>                 -2200</span><span>                 1976</span><span>                  -2240</span><span>                  2223</span><span>                     1<span>7</span></span></span>

А как первый?
4/2
2/2 2/2
10/2 10/2 10/2 10/2
-------------------------------
10/2
4/2 4/2
2/2 2/2 2/2 2/2

Ответ 7?

А - 625 мм
Б - 400 мм

12000+15000=27000
27000/3=9000 - это ответ