Answered

IDNStudy.com, ang iyong destinasyon para sa maaasahan at pangkomunidad na mga sagot. Sumali sa aming platform ng tanong at sagot upang makakuha ng eksaktong tugon sa lahat ng iyong mahahalagang tanong.

To dig a well, a company charges P80 for the first foot, P100 for the second foot, P120 for the third foot, and so on. The cost of each foot is P20 more than the cost of the preceding foot. What is the depth of a well that cost P23,400 to dig?

Sagot :

To get the depth of the well that cost P23,400:
23,400 - 80 = 23,320
23,320/20 = 1166
1166 + 1 = 1167
Therefore, the depth of the  well is 1167 ft.