Water level in a well was 20m below ground level. During rainy season, rain water collected in different water tanks was drained into the well and the water level rises 5 m above the previous level. The wall of the well is 1m 20 cm high and a pulley is fixed at aheight of 80 cm. Raghu wants to draw water from the well. The minimum length of the rope that he can use is
(a) 17 m (b) 18 m (c) 96 m (d) 97 m
