Question

1)Aflati catul si restul impartirii 1294 si 18.
2)a+b+c=172
c:(a+b)=4 rest 2
b=a+18
Calcultati!!
3)1+2+3+......+128
Urgent!!!!
Dau coroana

Answer 1

1) 1294:18=71 rest 16

2)  din c:(a+b)=4 rest 2 =>c=4a+4b+2=4a+4a+4*18+2=8a+72+2=8a+74

a+a+18+8a+74=172

10a=80

a=8

b=8+18=26

c=8*8+74=64+74=138

3) S=n(n+1)/2

S=64*129=8256