Question

Ravish bought 100 articles for $4000.He sold 20 of them at a gain of the 5%.At what gain percent must he sell the remaining articles so as to gain 20% on the whole​

Answer 1

CP=4000$

cost of one article=4000÷100=40

Answer 2

Answer:

cp = 4000$

cost of one article=4000÷100 = 40