Question

va roggg...............​

Answer 1

a)

n/5=a rest 1

n/10=b rest 6

n/13=c rest 9

100<n<500

n=5a+1

n=10b+6

n=13c+9

n+4 divizibil cu 5

n+4 divizibil cu 10

n+4 divizibil cu 13

5=5

10=5×2

13=13

cmmmc=5×2×13=130

n+4=130x

n=130x-4

n=126, 256 sau 386

b)

126÷15=8 rest 6

256÷15=17 rest 1

386÷15=25 rest 11