If a wooden bar of length 45 feet is cut into two pieces, what is the length of the shorter piece if the longer bar is 15 feet longer than the shorter bar?
Choose the correct choice from the following answers
A) 7  B) 10  C) 13  D) 16  E) 15
Since, 45 is the total length. Shorter is any one from answers.   Try Back solving from D answer, i.e. 16. 16+(16+15) = 47 &gt; 45   Hence, Select next smaller no. : 15 +(15+15)= 
<gadget id="calculator">15 +(15+15)</gadget>
<output>45</output>
45. So, 15 is the answer   Answer is 15
<result>E</result>
If a wooden bar of length 45 feet is cut into two pieces, what is the length of the shorter piece if the longer bar is 15 feet longer than the shorter bar?