Question

find CP when SP is rupees 1530 and profit percent equals to 8%

Answer 1

SP=((100+gain%)/100)×(CP)
1530=100+8/100×CP
1530=108/100×CP
CP=1530/108/100
=153000/108
CP =1416(approximately)

Answer 2

Hey Mate your answer is here......

$= sp = 1530rs \\ = profit \: \% = 8\% \\ = cp = x\\ = profit = profit \: \% \times x \div 100 \\ = 8 \times x \div 100 \\ =profit = \frac{2x}{25} \\ = we \: know \: that \\ = sp = cp + profit \\ = 1530 = x + 2x \div 25 \\ = 1530 =$25