Question

Cinci sarituri de ogar si 7 sarituri ale unei vulpi masoara 17 m.Doua sarituri ale unui ogar si 5 sarituri ale unei vulpi masoara impreuna 9 m.Ce distanta parcurge fiecare dupa 30 de sarituri

Answer 1

• $\bf \blue{~30~m ~parcurge~ vulpea~}$
• $\bf \green{~60~m ~parcurge~ogarul~}$

Explicație pas cu pas:

$\bf 2~ ogar.......5~ vulpe..........9 ~m~~~~ \bigg|\cdot5$    

$\bf 5~ ogar.......7~ vulpe..........17 ~m~~~~ \bigg|\cdot2$

$\bf ~~~$

$\bf 10~ ogar.......25~ vulpe..........45 ~m$

$\bf \underline{\bf 10~ ogar.......14~ vulpe..........34 ~m~~~~~~~~}(-)$

$\bf 11~vulpe =11~~~~\bigg|:11$

$\blue{\underline{~\bf saritura~ vulpe =1~m~}}$

$\bf 30 \cdot 1~ m = \red{\underline{~30~m ~parcurge~ vulpea~}}$

$\bf 2~ ogar + 5 \cdot 1 ~m = 9 ~m$

$\bf 2 ~ogar = 9~m - 5~m$

$\bf 2~ ogar = 4 ~m$

$\green{\bf \underline{~saritura ~ogar = 2~m~}}$

$\bf 30 \cdot 2~m = \red{\underline{~60~ m ~parcurge~ ogarul~}}$

==pav38==