109. A carpenter charged Rs. 2500 for making a bed. The cost of materials used is Rs. 1100 and the labour charges are Rs. 200/hr. For how many hours did the carpenter work? 109. A carpenter charged Rs. 2500 for making a bed. The cost of materials used is Rs. 1100 and the labour charges are Rs. 200/hr. For how many hours did the carpenter work? July 16, 2021 Category: Chapter 2 - Linear Equations in One Variable , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related