Question

Suma a 4 numere consecutive impare e 88. Cum fac???

Answer 1

a+a+2+a+4+a+6=88
4a=88-12
a=76:4
a=19
19+2=21
19+4=23
19+6=25
nr sunt 19,21,23,25

Answer 2

consecutive impare deci asta inseamna  ca fiecare termen este cu 2 mai mare decat celalalt

T1 |-----|

T2 |------|-2--|

T3 |-------|--2---|--2--|

T4 |--------|---2--|----2---|----2--|

1 EGALAM segmentele

                         88-12=76

2 cat e T1 ?

                      76:4=19

3 cat e T2 ?

                        19+2=21

4 cat e T3 ?

                        21+2= 23

5 cat e T4 ?

                             23+2=25

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