Answer:
1. He sold 5 erasers in January
2. He sold 130 erasers.
Explanation:
1. ₹1 per eraser = ₹5 for 5 erasers
2. if you add opposites you get 0 So, ₹2 by selling one marker pen, loss of ₹1 per eraser. 65*2 is 130. So 130 erasers.
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