A, B and C can do a work in 10, 15, and 30 days respectively. They contract to do it for ₹3000. They work together, but A leaves 2 days before the completion and B leaves 3 days before the completion. Find B's share in the earnings.
Options:
- A: ₹700
- B: ₹800
- C: ₹1000
- D: ₹1200
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