Question

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

Answer 1

5o+7v=17 I x2

2o+5v=9 I x5 si le scad(metoda reducerii)

25v-14v= 45-34

11v=11

v=1 m

o=9-5  :  2 =2 m

verificare: 5*2+7*1=17 ok

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Deci dupa 30 sarituri avem

pt ogar: 30x2=60 m

pt vulpe: 30x1=30 m.