Question

Nimra was late to school 3 times in the first month of the term. If the school was open for 23 days, express her record of punctual days to total days as a ratio in the form n: 1 (correct to 2 decimal places). Use your ratio to write her percentage of punctuality.

A) Ratio: 3.00:1, Percentage: 13.04%
B) Ratio: 1.00:3, Percentage: 30.43%
C) Ratio: 3.00:20, Percentage: 15.00%
D) Ratio: 1.00:8, Percentage: 12.50%

Answer 1

Nimra's record of punctual days to total days is 20:23, and her percentage of punctuality is 86.96%.

Step-by-step explanation:

To find Nimra's record of punctual days to total days as a ratio, we need to subtract the number of times she was late from the total number of days, and then express it as a ratio to the total days. In this case, Nimra was late 3 times, so the ratio of punctual days to total days is (23 - 3):23, which simplifies to 20:23.

To find her percentage of punctuality, we can divide the number of punctual days (20) by the total days (23) and multiply by 100. The percentage of punctuality is 86.96%, which, when rounded to 2 decimal places, is 86.96%.