Question

Ionuț mananca in 5 zile 100 de alune, in fiecare zi manca cu 6 mai mult decat precedenta.Cate alune a mancat in prima zi?

Answer 1

1. -------
2. -------6
3. --------12. }100
4. --------18
5. --------24
100-(6+12+18+24)
100-60=40 (5seg egale)
40:5=8 (primul nr.)

Answer 2

1.a ]
2.a+6 ]
3.a+6+6 ]in total 100 alune
4.a+6+6+6 )
5.a+6+6+6+6 )
6×10=60
100-60=40( de 4 ori 1.a)
40÷4=10 1.a
10+6=16 2.a
16+6=22 3.a
22+6=28 4.a
28+6=34 5.a
R: 10 ALUNE A MANCAT IONUT IN PRIMA ZI,ADICA 1.A