Asked by Anonymous
"Singapura Mathemetica" has 212 pages. The day I bought it I read exactly half. The next day I read one-third of what was left. On the day after that I read one-quarter of what remained. What fraction of the Singapore math playbook remained unread?
Answers
Answered by
mathhelper
212 pages at start
after one day, 106 pages left
next day, read (1/3)(106) or 35 1/3 pages
leaving 70 2/3 pages to read
last day , read (1/4)(70 2/3) or 17 2/3 page, leaving
70 2/3 - 17 2/3 or 53 pages to read
Did you intend to have fractional pages unread or read ?
after one day, 106 pages left
next day, read (1/3)(106) or 35 1/3 pages
leaving 70 2/3 pages to read
last day , read (1/4)(70 2/3) or 17 2/3 page, leaving
70 2/3 - 17 2/3 or 53 pages to read
Did you intend to have fractional pages unread or read ?
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