2013 AMC 12A Problems/Problem 5: Difference between revisions
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Add up the amounts that Tom, Dorothy, and Sammy paid to get $<math>405</math>, and divide by 3 to get $<math>135</math>, the amount that each should have paid. | Add up the amounts that Tom, Dorothy, and Sammy paid to get $<math>405</math>, and divide by 3 to get $<math>135</math>, the amount that each should have paid. | ||
==Solution | ==Solution== | ||
Tom, having paid $<math>105</math>, owes Sammy $<math>30</math>, and Dorothy, having paid $<math>125</math>, owes Sammy $<math>10</math>. | Tom, having paid $<math>105</math>, owes Sammy $<math>30</math>, and Dorothy, having paid $<math>125</math>, owes Sammy $<math>10</math>. | ||
Thus, <math>t - d = 30 - 10 = 20</math>, which is <math>\boxed{\textbf{(B)}}</math> | Thus, <math>t - d = 30 - 10 = 20</math>, which is <math>\boxed{\textbf{(B)}}</math> | ||
Revision as of 11:41, 22 February 2013
Problem
Add up the amounts that Tom, Dorothy, and Sammy paid to get $
, and divide by 3 to get $
, the amount that each should have paid.
Solution
Tom, having paid $
, owes Sammy $
, and Dorothy, having paid $
, owes Sammy $
.
Thus, 
, which is 
