Question

In an outcrop, we find a Belemnite fossil broken into five rectangular pieces (boudins) of equal size. Long dimension of each boudin is 1.35 cm. Gap between adjacent boudins in all cases is 0.25 cm. Note that the long dimensions of boudins are perfectly aligned. The % elongation is (give answer in one decimal place).

Hint:

Elongation is calculated as the ratio of total length (including gaps) to original length.

Answer 1

Step 1: Understanding the question.
The question provides the dimensions of a Belemnite fossil and asks for the percentage elongation of the boudins.
Step 2: Analyzing the solution.
The elongation percentage can be calculated as: \[ \text{Elongation} = \frac{\text{Long Dimension} + \text{Gap}}{\text{Long Dimension}} \times 100 \] Substitute the values: \[ \text{Elongation} = \frac{1.35 + 0.25}{1.35} \times 100 = \frac{1.60}{1.35} \times 100 = 118.6% \] Since this elongation is based on the original length, the percentage elongation is 18.6%.
Step 3: Conclusion.
The correct answer is 18.6%.