Answer:
9 weeks and 4 days
Explanation:
We know that all of these countries are in Europe, and that there is 7 days in a week. In the following steps, I will multiply the number of weeks by 7 and add the product to the number of remaining days.
Spain: 1 * 7 + 3 = 10
Italy: 2 * 7 + 5 = 19
France: 3 * 7 + 4 = 25
Scotland: 1 * 7 + 6 = 13
Now, I will add all of the results together. 10 + 19 + 25 + 13 = 67.
Now, I will divide 67 by 7 and only use the whole number on the left side of the decimal point to get 9.
Now, I will multiply 9 by 7 to get 63. The remainder is 4 days. So, Miss Lewis was in Europe for 9 weeks and 4 days.
P.S.: It sounds complicated, but all I really did on the last 2 steps was divide and find a remainder, which is very simple.