Question

Achar o número de múltiplos de 5 compreendidos entre 21 e 623

Answer 1

25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,255,260,265,270,275,280,285,290,295,300,305,310,315,320,325,330,335,340,345,350,355,360,365,370,375,380,385,390,395,400,405,410,415,420,425,430,435,440,445,450,455,460,465,470,475,480,485,490,495,500,505,510,515,520,525,530,535,540,545,550,555,560,565,570,575,580,585,590,595,600,605,610,615,620.

Flw kk questão enorme... Parece pega

Answer 2

21 e 623
a 1 = 25
a n = 620
a n = a1 + (n - 1 ).r
a n = 25 + (n - 1 ).5
620 = 25 + 5 n - 5 
620 = 20 + 5 n
620 - 20 = 5 n
600 = 5 n
600/5 = n
n = 120

Resposta Há 120 múltiplos de 5 entre 21 e 623.