A shop keeper bought 45 dozen eggs at 25 rs per dozen. Out of these eggs 40 were broken. What price per dozen must he sell the remaining eggs to gain 25 percent on his investment
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CP = 5 x 36= 180
total number of eggs = 5x 12= 60
number of broken eggs
= 5/100 x 60
=3
remaining eggs = 60-3 = 57
Now
number of dozen = 57/12 =( 4+ 3/4) dozen
cost of 4 dozen = 48 x 4= 192
cost of 3/4 dozen = 3/4 x 48 = 36
total money = 192 + 36 = 228
gain = 228 - 180 = 48
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