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Rushil’s new share: \( 4 - \frac{2}{7} = \frac{28}{7} - \frac{2}{7} = \frac{26}{7}. \)
Abheer’s new share: \( 3 - \frac{1}{7} = \frac{21}{7} - \frac{1}{7} = \frac{20}{7}. \)
Sunil’s share: \( \frac{3}{7}. \)
Combine to find the new ratio:
Rushil : Abheer : Sunil = \frac{26}{7} : \frac{20}{7} : \frac{3}{7} = 26 : 20 : 3 = 13 : 10 : 3 (on simplifying).
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A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?