Question

on selling a sofa set for rupees 21600 , a dealer gains 8%. For how much did ha purchased it ?

Answer 1

let the cost price be x

# 21600 = x+[x*(8/100)]

# 21600 = 108x/100

# x = (21600*100)/108
= 200*100
= 20000

therefore, dealer purchased the sofa for ₹20000

Answer 2

SP of sofa =21,600
GAIN=8%
CP=100/100+GAIN%×SP
100/108×21,600
100×21600/108=21,60,000/108
21,60,000/108
CP=20,000