More marbles

This task is about fractions of quantities.
marbles
 
 
a)
The students in Room A lost \(1 \over 5\) of their 130 marbles in a game.
 
How many marbles did Room A lose? __________
 
 
b)
Room C had 366 marbles. They lost \(1 \over 6\) of these in a game.
 
How many marbles did Room C have left? __________
 
 
c)
Room E had 320 marbles. They won \(1 \over 8\) of the 288 marbles from another class.
 
How many marbles did Room E have now? __________