Ronny, Celina, Jack, and Michelle together placed a total of 20 brownies on a tray. Ronny placed 0.15 of the brownies, Celina placed 3 of the 20 brownies, Jack placed 30% of the brownies, and Michelle placed the remaining brownies. Who placed the most brownies?

Ronny

Celina

Jack

Michelle

To answer the question above, evaluate the number of cookies each of them placed on a tray. The calculations are shown below,

Ronny C1 = 0.15 x 20 = 3

Celina C2 = 3

Jack C3 = 0.30 x 20 = 6

Michelle C4 = 20 - (3 + 3 + 6) = 8

From the calculation above, Michelle placed the most number of brownies on the tray.