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Answer :
Let , sheela gets 3x pens
Sangeeta gets 2x pens
Sum of pens = 20 pens
3x + 2x = 20
=> 5x = 20
=> x = \(\frac{20}{5} = 4 \)
sheela gets 3x pens = 3×4 = 12 pens
Sangeeta gets 2x pens = 2×4 = 8 pens