Number of hammer boxes is 26 and number of wrench boxes is 11.
Explanation:
Given,
Price of a wrench box = $ 109
Price of a hammer box = $ 306
Total number of boxes = 37
Total amount of the 37 boxes = $ 9155
To find the number of wrenches and hammers boxes.
Let,
There are x number of wrench boxes and y number of hammer boxes.
According to the problem,
x+y = 37 ----(1)
109x+306y = 9155 ------(2)
Putting, x = 37-y from (1) into (2) we get,
109(37-y)+306y = 9155
or, 4033 - 109y +306y = 9155
or, 197y = 9155-4033
or, 197y = 5122
or, y = 26
Hence,
Number of hammer boxes = 26
Number of wrench boxes = 37 -26 = 11