Question

Ellie loves to bale cookies. She puts her first batch of 12 cookies in the oven at 1:15pm. They takes 15 minutes to bake. She puts in another batch of 12 cookies at 1:30pm. They take 15 minutes to bake. If she follows this pattern for the rest of her baking, at what time will she have 48 cookies

Answer 1

at 1:30 she would have 12 done
at 1:45 she would have 24 done
at 2 she would have 36 done
at 2:15 she would have 48 cookies