Here, we are required to determine the elevation of the hole after placing the bush in the hole, relative to the ground level.
The elevation of the hole relative to the ground level is; 58 feet.
If Davis digs the hole at a rate of 34 feet every 10minutes, After digging for 40 minutes, he must have dug the hole up to;
(34 ×4) feet = 136feet.
Afterwards, Davis places a bush in the hole that fills exactly 78 feet of the hole.
Therefore, the elevation of the hole relative to the ground level is;
The difference between the initial depth of the hole and the height filled by the bush placed in the hole by Davis.
Therefore, the elevation of the hole relative to the ground level is;
(136 - 78) feet.
The elevation of the hole relative to the ground level is; 58 feet.
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