Grant has four times as many vacations as Kelvin has classes. If Kelvin has 90 classes, how many vacations and classes do Grant and Kelvin have altogether?
Grant has 4*90 = <<4*90=360>>360 vacations.
In total, they have 360 + 90 = <<360+90=450>>450 vacations and classes.
#### 450
Grant, Kelvin'in sahip olduğu ders sayısının dört katı kadar tatile sahiptir. Kelvin'in 90 dersi varsa, Grant ve Kelvin'in toplam kaç tatili ve dersi vardır?
Grant'ın 4*90 = <<4*90=360>>360 tatili vardır.
Toplamda 360 + 90 = <<360+90=450>>450 tatilleri ve dersleri var.
#### 450