Question

Daca un om parcurge 90 metri in 30 secunde, cati metri a facut in 1/5 din secunda

Answer 1

90m..........30 sec
x................1/5 sec

x=90* 1/5 /30

x=90/5/30

x=18/30

x=0,6m

Answer 2

$\frac{1}{5} secunde = 0,2 secunde$

90:30=3 metii parcuge in o secunda.

3m...............1 s
x m .............0,2 s
____________
x= $\frac{3x0,2}{1}$
x=0,6