Wave Period Calculation: Is 0.1 the Correct Answer for Frequency of 1/10?

[bobacity]

Homework Statement

A wave has amplitude of 6.0 cm and a frequency of 10 Hz, and the distance from a crest to the nearest trough (measured along the direction of the wave’s energy transfer) is measured to be 4.0 cm. Determine the period of such a wave.
A: 60s
B: 1.5s
C: 0.4s
D: 0.1s
E: 4s

Relevant Equations

T (period) = 1/ frequency

I think the answer is just 1/10 (according to the formula for period), so the answer is 0.1. Is that correct?
Thanks!

 

[kuruman]

That is correct. However, I am perplexed that you cannot be confident that 1/10 = 0.1.

 

[malawi_glenn]

That is correct. However, I am perplexed that you cannot be confident that 1/10 = 0.1.

I do not think that is the part where OP was uncertain...

 

[jbriggs444]

The question offers you more information than needed. You correctly chose the relevant datum.

 

[bobacity]

Thanks everyone! I was just unsure whether I needed all the extra info or not.