From the wing feather growth, they are at least 7-10 days old in that picture, which means they are probably closer to 15 weeks.Actually her sister got them for her. There is a railway station in her town where the supply of baby chicks come from somewhere. The train is changed for the baby chicks and they have to wait for couple of hours to shift the baby chicks' boxes to the different train. During this time, if somebody (mostly kids insisting their parents) wants chicks they can go and buy the baby chicks. So that's why I think they must be broilers. I am attaching a picture of them when they were babies if that helps.View attachment 1679586