Question

sonali has total 120 red and black pens if 30% of them are black, then how many black pens does sonali have

Answer 1

30% of 120
30/100×120
=36 pens

Answer 2

Number of black pens = 30% of 120
=30/100 of 120
=36
So,number of black pens are 36.
Hope it helps...!!!