Difference between revisions of "2006 AMC 10A Problems/Problem 4"

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<center><math>9+5+9=23,(E)</math></center>
 
<center><math>9+5+9=23,(E)</math></center>
  
== See Also ==
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== See also ==
*[[2006 AMC 10A Problems]]
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{{AMC10 box|year=2006|ab=A|num-b=3|num-a=5}}
 
 
*[[2006 AMC 10A Problems/Problem 3|Previous Problem]]
 
 
 
*[[2006 AMC 10A Problems/Problem 5|Next Problem]]
 
  
 
[[Category:Introductory Number Theory Problems]]
 
[[Category:Introductory Number Theory Problems]]

Revision as of 01:34, 11 September 2007

Problem

A digital watch displays hours and minutes with AM and PM. What is the largest possible sum of the digits in the display?

$\mathrm{(A) \ } 17\qquad \mathrm{(B) \ } 19\qquad \mathrm{(C) \ } 21\qquad \mathrm{(D) \ } 22\qquad \mathrm{(E) \ } 23$

Solution

The time with largest sum is 9:59.

$9+5+9=23,(E)$

See also

2006 AMC 10A (ProblemsAnswer KeyResources)
Preceded by
Problem 3
Followed by
Problem 5
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All AMC 10 Problems and Solutions