4 The water level in a well was 20 m below ground level. During the rainy
season, the water level rose 5 m above the previous level. The wall of the
well is 1 m 20 cm high, and a pulley is fixed 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
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Answered by
1
Answer:
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Answered by
7
Answer:
Correct option is
A
17 m
Option (a) is correct;
we have been given that,
Wells height=1.20m
Pulleys height=0.80m
Hence, the required ropes length
=(20−5+1.20+.80)
=(15+2)
=17m
Therefore, the minimum length of the rope is 17m.
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