Question

9.Water level in a well was 20 m below ground level. During
rainy season, rainwater 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 Im 20cm
high and a pulley afixed at a height of 80 cm. Raghu wants
to draw water from the well. The minimum length of the
rope, that he can use is
80 cm
1m 20 cm
(a) 17 m
(b) 18 m
(c) 96 m
(d) 97 m​

Answer 1

Answer:

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

Answer 2

Answer:

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

Step-by-step explanation:

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