Question

De la punctul B pina la E!!! Va roog

Answer 1

b) 152:8=19 cuie intr-o ora
60:19=3.1579... / un cui in 3 minute si 15 secunde

126:7=18 cuie intro ora
60:18=3,3333... / un cui in 3 minute si 20 secunde

 c) Stietot are o productivitate m. mare
Este logic.

d) 1234 cuvinte...............3 minute
x cuvinte......................... 12 minute

x=14808/3=4936 > 4321

Deci,productivitatea mai mare o are gura-sparta.

e) 3kg....,....7min30s. |×2
x.............15min
x=6kg
6kg.......15×60s=900s
x.................15s
x=6kg×15/900=6000×15/900=100gr
deci papabine mananca 6kg100gr in 15min si 15s