Chris, Eric, Kelsey and Ronnie baked a round cake. Then each of them took a sector of the cake; a sector of the cake is shaped like the shaded area in the picture below. Chris took one third, Eric took one fourth, Kelsey took one fifth, and Ronnie took one sixth of the whole cake. What is the angle in degrees of the remaining section?

Chris, Eric, Kelsey and Ronnie baked a round cake. Then each of them took a sector of the cake; a sector of the cake is shaped like the shaded area in the picture below. Chris took one third, Eric took one fourth, Kelsey took one fifth, and Ronnie took one sixth of the whole cake. What is the angle in degrees of the remaining section?





They  took   31   +  41   +  51   +  61    =   6057    part  of  the  whole  cake,  so   603      =   201      remained.   The 1 /20  part  of  360◦    is  18◦