B is 20% more efficient than A. If B is 60% more efficient than A, then B could complete the work in 18 days less than the number of days taken by A. ...

Banking IBPS PO Mains Medium Simplification MCQ

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B is 20% more efficient than A. If B is 60% more efficient than A, then B could complete the work in 18 days less than the number of days taken by A. What fraction of work would be left after 12 days, if A and B work together?

Options

$\frac{1}{5}$

$\frac{7}{20}$

$\frac{11}{20}$

$\frac{13}{20}$

$\frac{9}{20}$

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B is 20% more efficient than A. If B is 60% more efficient than A, then B could complete the work in 18 days less than the number of days taken by A. ...

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