Question

by selling an article for Rs.840 , a person get a profit of 20% . what is the cost price of the article​

Answer 1

Answer:

rs700

Step-by-step explanation:

sp=rs840

profit%=20%

$cp = (\frac{100}{100 + 20} ) \times 840 \\ = ( \frac{100}{120} ) \times 840 \\ = 100 \times 7 \\ =rs700$

Answer 2

profit percentage is equal to to profit upon CP in 100

20=840-cp/cpx100

20 CP=84000-100cp

120cp=84000

CP=84000/120

CP=700