Joan and Karl each bought a telescopes and the sum of their purchases was $400. If twice of what Joan paid was $74 more than what Karl paid, what did Joan pay for her telescope?  Choose the most appropriate option.
A) $150  B) $152  C) $154  D) $156  E) $158
J+K=400 so K=400-J   2J=K+74   2J=(400-J)+74   3J=474   J=158   The answer is $158.
<result>E</result>
Joan and Karl each bought a telescopes and the sum of their purchases was $400. If twice of what Joan paid was $74 more than what Karl paid, what did Joan pay for her telescope?