Four positive integers form an arithmetic progression. If subtract 2, 6, 7, and 2, respectively, from the four numbers, it forms a geometric progression. Find the sum of
these 4 numbers.
A 56
B. 62
C. 78
D None of the above

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.