Asked by vipul
a reduction of 20% in the price of eggs would enable a man to obtain 6 more for rs 10 what is the original price per dozen of eggs
Answers
Answered by
Reiny
original cost per egg --- x
cost per egg after reduction = .8x
number of eggs for rs 10 at x = 10/x
number of eggs for rs 10 at .8x = 10/(.8x) = 12.5/x
12.5/x - 10/x = 6
2.5x = 6
x = 6/2.5 = 2.4
original cost per dozen = 12(2.4) = Rs 28.8
check my arithmetic
cost per egg after reduction = .8x
number of eggs for rs 10 at x = 10/x
number of eggs for rs 10 at .8x = 10/(.8x) = 12.5/x
12.5/x - 10/x = 6
2.5x = 6
x = 6/2.5 = 2.4
original cost per dozen = 12(2.4) = Rs 28.8
check my arithmetic
Answered by
vipul
But answer is 5 can you explain
Answered by
tanuj
12.5/x-10/x=6
6x=2.5
X=2.5/6=0.4166
Price per dozen
12*0.4166=4.999 or 5
6x=2.5
X=2.5/6=0.4166
Price per dozen
12*0.4166=4.999 or 5
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