Question

Kyra and pari are timing how long it take for 1g of sugar to dissolve in hot water.kyra records a time of 24.3 sec.Pari records a time of 24 sec.Whose reading is more precise.Explain why?Plz help me

Answer 1

Answer:

Explanation:

We can say that Kyra's reading is more precise.

A reading with more number of significant figures is considered to be more precise.

Kyra recorded a reading of 24.3 seconds. Since all non-zero digits are considered to be significant, this reading has 3 significant figures.

Pari recorded a reading of 24 seconds. Since, all non-zero digits are considered to be significant, this reading has 2 significant figures.

Hence, we can say that Kyra's reading has more significant figures and so it is more precise.