Question

In parc s-au sadit 4860 panselute.Dintre acestea 2600 sunt albe si rosii,iar 2500 sunt rosii si galbene.Cate panselute de fiecare culoare s-au sadit in parc?

Answer 1

cate panselute galbene sunt? 4860-2600=2260.                 cate panselute albe sunt? 4860-2500=2360              cate panselute rosii sunt?4860- 2260-2360=240

Answer 2

a+r+g=4860

a+r=2600

r+g=2500

a+r+g=4860

2600+a=4860

a=4860-2600

a=2260

a+r+g=4860

g+2500=4860

g=4860-2500

g=2360

2260+2360+r=4860

4620+r=4860

r=4860-4620

r=240

v:2260+2360+240=4860

                      R:2260;2360;240