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 the correct choice from the following.
A) Rs. 9.36
B) Rs. 10.36
C) Rs. 11.36
D) Rs. 12.36
E) Rs. 14.36
Explanation:   Let the original price per egg be Rs x   Then increased price will be,   (130/100)x   =&gt;7.80/x- 7.80/ 130/100x =3   =&gt;x=0.6   Rs. 9.36ctual price was Rs 0.6,   Present price per dozen will be   Rs.(12*130/100*0.6)=Rs.9.36   (130100x)=&gt;7.80xâˆ’7.80130100x=3=&gt;7.80xâˆ’780130x=3=&gt;390x=234=&gt;x=0.6Rs. 9.36ctual price was Rs 0.6Present price per dozen will beRs.(12âˆ—130100âˆ—0.6)=Rs.9.36   Rs. 9.36NSWER IS Rs. 9.36
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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.