Question

Let n be the greatest number that will divide 148, 246 and 623 leaving remainders 4, 6 and 11 respectively. What is the remainder if n is divided by 7?



a. 0

Answer 1

148-4 = 144
246-6 = 240
623-11 = 612
Hence these 3 are divided by 12 leaving remainders 4, 6 and 11

So, the answer is 12.