Due to an increase in 30% in the price of eggs, 3 eggs less are available for Rs. 7.80. Find the present rate of eggs per dozen.  Choose one
A) Rs. 8.36 B) Rs. 9.36 C) Rs. 10.36 D) Rs. 11.36 E) Rs. 11.98
Let the original price per egg be Rs x   Then increased price will be,   (130/100 x)   =7.80/x −7.80/(130/100) x =3   =7.80/x −780/130x =3   =390x=234   x=0.6   Actual price was Rs 0.6   Present price per dozen will be   Rs.(12∗130/100 ∗0.6)=Rs.9.36   Answer : Rs. 9.36
<result>B</result>
Due to an increase in 30% in the price of eggs, 3 eggs less are available for Rs. 7.80. Find the present rate of eggs per dozen.