If 5 pens = 20 pencils, Then 15 pens = ____
5 pens = 20 pencils
∴ 1 pen = 20/5 = 4 pencils
∴ 15 pens = 15×4=60 pencils.
Reena has pens and pencils which together are 40 in number. If she has 5 more pencils and 5 less pens, then number of pencils would become 4 times the number of pens. Find the original number of pens and pencils.
Reena has. Pens and pencils which together are 40 in number. If she has 5 more pencils and 5 less pens,then number of pencils would become 4 times the number of pens . Find original number of pens and pencils.