# Chapter 1 - 1.3 - Problems - Power and Enery: P1.27

42 hours 1.26kWhr 30 cents per kWhr

#### Work Step by Step

$12.6V\times100Ahr\div30W=42hr$ $12.6V\times100Ahr\div1000Whr/kWhr=1.26kWhr$ $\$95\div(250\times1.26kWhr)=\$0.301\ per\ kwhr$

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.