UPSKILL MATH PLUS

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1. If 30 men can reap a field in 15 days, then in how many days can 20 men reap the same field? (using unitary method)
 
Number of days =
 
2. Valli buys 10 pens for ₹180 and Kamala buys 8 pens for ₹96. Can you say who bought the pen cheaper? (using unitary method)