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Question

'X' can complete 75% of a work in 15 days, whereas 'Y' can complete 25% of the same work in 10 days. They both started working together, but 'Y' left the job 'n' days before the work finished. If the entire work is completed in 14 days, then find the value of [0.6n + (n²/5)].

A 6

B 1

C 2

E None of these

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