On Thursday, Eric read
37 of a story book. On Friday, he read 40 pages of the story book. On Saturday, he read
58 of the remaining book leaving 24 pages unread.
- Find the number of pages read on Saturday.
- Find the total number of pages in the story book.
(a)
Number of remaining unread pages after reading on Friday = 8 u
Number of remaining unread pages after reading on Saturday
= 8 u - 5 u
= 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Number of pages that Eric read on Saturday
= 5 u
= 5 x 8
= 40
(b)
Working backwards.
Number of pages unread after reading on Friday
= 8 u
= 8 x 8
= 64
Total number of pages in the story book = 7 p
Number of pages unread after reading on Thursday
= 7 p - 3 p
= 4 p
4 p = 40 + 64
4 p = 104
1 p = 104 ÷ 4 = 26
Total number of pages in the story book
= 7 p
= 7 x 26
= 182
Answer(s): (a) 40; (b) 182