Kelereng badu dan iman 4:10 jumlah lelereng iman 40 butir brp kelereng badu

misal =
iman = i
badu = b
b : i = 4 : 10
i = 40
b = ?
jawab =
b = 4/10 x 40 = 16
jadi jumlah kelereng badu 16

40:10=4X4=16................