C-11-Q039mediumsingle_mcqএকান্তরকরণে 5:7=10:145:7 = 10:145:7=10:14 থেকে পাই —a5:10=7:145:10 = 7:145:10=7:14b7:5=14:107:5 = 14:107:5=14:10c5:14=7:105:14 = 7:105:14=7:10d7:10=5:147:10 = 5:147:10=5:14