on monday. Anna read 25% of her book.On Tuesday, she read 30%of her book.On Wednesday she read 25% her book.On Thursday she read 25% of her book.She still has 10% of her book left to read.How is this possible?

i did the test A D C A B A D

To understand how this is possible, we need to look at the cumulative percentage of the book that Anna has read each day.

On Monday, Anna read 25% of her book.
On Tuesday, she read an additional 30% of her book, which brings the total to 55% (25% + 30%).
On Wednesday, Anna read another 25% of her book, making it a total of 80% (55% + 25%).
On Thursday, she read an additional 25% of her book, bringing the total to 105% (80% + 25%).

It seems there might be an error or inconsistency in the information provided. It is not possible to have read more than 100% of the book. If Anna still has 10% of her book to read, then the given information is not accurate or needs clarification.

To understand how it is possible for Anna to still have 10% of her book left after reading on four consecutive days, let's break down the calculations.

On Monday, Anna read 25% of her book. Assuming the total book length is represented by x, she read 0.25x.

On Tuesday, she read 30% of her book. Considering the remaining unread portion after Monday's reading is 0.75x (100% - 25% = 75%), Anna read 0.30 * 0.75x = 0.225x.

On Wednesday, Anna read 25% of the remaining unread portion from Tuesday, which is 0.75x - 0.225x = 0.525x. This equates to 0.25 * 0.525x = 0.13125x.

On Thursday, she read 25% of the remaining unread portion from Wednesday. Therefore, she read 0.25 * 0.13125x = 0.0328125x.

In total, Anna has read 0.25x + 0.225x + 0.13125x + 0.0328125x = 0.6390625x.

To find the remaining percentage of the book, subtract what she has read from the total length: 100% - 0.6390625x = 0.3609375x, which is equal to 36.09375%.

Therefore, Anna still has 36.09375% (or approximately 36.1%) of her book left to read.

Maybe she read chapter one over and over?