This should be right

Thanks. Ok. But can a model be drawn?

For first day, draw one box .

For second day, draw one box and one smaller box. Label the inside of the smaller box as '10'

For third day, draw one box and 2 smaller boxes. Label the inside of each smaller box as '10'

For fourth day, draw one box and 3 smaller boxes. Label the inside of each smaller box as '10'

For the fifth day, do the same but with 4 smaller boxes.


Here's a symbol representation :


Day 1 ⬛
Day 2 ⬛[10]
Day 3 ⬛[10][10]
Day 4 ⬛[10][10][10]
Day 5 ⬛[10][10][10][10]

The black box represents the number of pages read on the first day.

The total for 5 days is 185 pages.


Steps/working :

① There are 10 boxes of 10 pages. Their total = 10 x 10 pages = 100 pages


② So sum of 5 black boxes
= 185 - 100
= 85 pages

③ Since each black box has the same value, divide 85 by 5 to find each box's value.

85 pages ÷ 5 = 17 pages

So number of pages read on the first day
= 17

Thank you

Thank you J for the clear explanation.

Welcome

Sry I didn't provide the model