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Maths Puzzle
Calvin is trying to finish reading a book with 414 pages in 9 days by reading 1 more page each day than the previous day. How many pages will he end up reading on the last day?
Read Solution (Total 3)
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- 50 pages
414/9=46 which is mean.... so 42,43,44,45,46,47,48,49,50 - 11 years agoHelpfull: Yes(0) No(0)
- Ans - 50 page
solution - Lets he reading first days = x page
then second day = x+1
third day = x+2
fourth days=x+3
fifth days = x+4
sixth days = x+5
seventh days = x+6
Eight days = x+7
Nineth days = x+8
then add total
9x+36=414
x=414-36/9
= 50 page
so last day he reading 50 page - 11 years agoHelpfull: Yes(0) No(0)
- 50 pages
An arithmetic series of 9 terms and difference of 1 with sum 414
If a=first term then,(9/2)(2a+8*1)=414 or a=42
And 9th term=42+8*1=50
So on last 9th day pages read=50
- 11 years agoHelpfull: Yes(0) No(0)
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