Jumlah kelereng a b c = 124 butir kelereng a = 3/5 kelereng B kelereng b = 2/3KLERENG C

A+b+c = 124
a = 3/5 b
b = 2/3 c

a = 3/5 x 2/3 c
a = 2/5 c

2/5 c + 2/3 c + c = 124
6/15 c + 10/15 c + 15/15 c = 124
31/15 c = 124
31 c = 124 x 15
c = 1860 : 31
c = 60 kelereng

a = 2/5×60 = 24 kelereng
b = 2/3×60 = 40 kelereng