Question

water level in the well was 20 below ground level during the rainy season rain water was collected in different water tanks after rainwater harvesting rainwater was trained into the well and the water level in the well rises 5 metre above the previous level the wall of the well is 120 cm high and pulley is fixed at a height of 80 CM you want to draw water from the well what is the minimum length of the rope required by Raghu to draw water from the well.​

Answer 1

After water level rises 5 m above the previous level, water level is now (20 - 5) = 15 m below the ground level. = 17 m