SOLUTION: There are 648 more blue pens than red pens in stationary shop. After 1/6 of the blue pens and 3/4 of the red pens were sold, there were 1338 more blue pens than red pens left. How

Question 1004535: There are 648 more blue pens than red pens in stationary shop. After 1/6 of the blue pens and 3/4 of the red pens were sold, there were 1338 more blue pens than red pens left. How many pens were there at first.
Answer by maxitee(11) (Show Source): You can put this solution on YOUR website!
Let's call the Blue pens B and the Red pens R.

(From the question)... Equation(i)
Upon selling 1/6 of blue pens, we now have a new amount of Blue pens. We shall call this new amount of blue pen Bn)
, (Where B is the original amount of Blues)
(Same thing applies to Reds after selling 3/4)
(Because blues had 1338 more than red after sales)
(Substituting the values of Bn and Rn into above equation)

R= 1368 (Total amount of RED before sales)
B = 2016 (Total amount of Blues before sales)
How many pens? Simply add up B and R. I will allow you do that..
Enjoy!
RELATED QUESTIONS
Greg had some pens.2/5 of the pens were blue and 1/6 of the remainder were black.the rest (answered by josmiceli)

There are 25 red pens, 25 green pens and 25 blue pens in a box. You are blindfolded, how... (answered by fractalier)

There are 10 blue pens, 15 red pens and 3 green pens. .write the ratio of blue pens to... (answered by macston)

3/5 of the number of pens displayed at the bookstore were red and the rest were... (answered by josgarithmetic,rothauserc,ankor@dixie-net.com)

Leo’s pencil case contains 8 black pens, 6 blue pens and 2 red pens. He loses 4 pens, 2 (answered by Boreal)

Leo’s pencil case contains 8 black pens, 6 blue pens and 2 red pens. He loses 4 pens, 2 (answered by jim_thompson5910)

Bob has a box in front of him. There are 6 red pens, 4 blue pens, and 2 green pens (answered by ewatrrr)

There are 12 pens in a pack. 7 of the pens are blue and 5 of the pens are red. Three pens (answered by stanbon)

A. There are 5 colors pens in red, yellow, blue, green, and purple. How many patterns can (answered by ikleyn)