Geometry | Strength | Support | Method |
P. Tabular & Moderately Steep | L. | X. Unsupported | 1. Cut and Fill |
Q. Tabular & Flat | M. Moderate | Y. Artificially Supported | 2. Block Caving |
R. Massive and Steep | N. Weak | Z. -supported | 3. Room and Pillar |
An electricity utility company charges ₹7 per kWh. If a 40-watt desk light is left on for 10 hours each night for 180 days, what would be the cost of energy consumption? If the desk light is on for 2 more hours each night for the 180 days, what would be the percentage-increase in the cost of energy consumption?
Three villages P, Q, and R are located in such a way that the distance PQ = 13 km, QR = 14 km, and RP = 15 km, as shown in the figure. A straight road joins Q and R. It is proposed to connect P to this road QR by constructing another road. What is the minimum possible length (in km) of this connecting road?
Note: The figure shown is representative.