A plant manager is ordering supplies for a week. He needs 36 m3 of fluid to run two shifts. Each tank holds 36 m3 of fluid. If he plans to run 9 shifts, how many tanks will he need?

Does this question have the following choices?

A) 9 tanks

B) 4 tanks

C) 36 tanks

D) 4.5 tanks

If so, then the answer would be letter D.

one tank has 36 m3 of fluid, which covers 2 shifts.

Divide the number of shifts needed by the number shifts each tank fills

9 shifts needed : 2 shifts each tank fills

= 4.5