
Pls help. Is the answer 50% or 40%? Thank you
Pls help. Is the answer 50% or 40%? Thank you
At first, (typed in black, blue pens = 25% (u) and red pens = 75%(3u) )
Blue [u][u] <—– (Bought an equal number of blue pens means another u added)
Red [u][u][u]
So new total pens = 5u
New blue pens = 2u
Hence blue pens in the end = (2u)/(5u) x 100% = 40%