a man sold his stack of eggs for Rs.240.if he had 2 dozen more ,he would have got the same money by selling the whole of 0.5 per dozen cheaper.how many dozen eggs does he sell?
Ok, I do not know what you mean by
" selling the whole of .5 per dozen cheaper".
I still not got the condition plz explain...
Eggs) * (Price) = 240
(Eggs + 2) * (Price - 0.5) = 240
2 answers
Hi Aly -
use the solution we found previously
we obtained:
Rs240/D = (Rs240 + 0.5D + 1)/(D + 2)
Now solve for D:
Rs240 = D * (Rs240 + 0.5D + 1)/(D + 2)
So 240 = (240D + 0.5D^2 + D)/(D + 2)
240(D + 2) = (240D + 0.5D^2 + D)
240D + 480 = 240D + 0.5D^2 + D
480 = 0.5D^2 + D
D = 30
Try it:
Originally 30 * 8 = Rs240
Alternately 32 * 7.5 = Rs240
Some advice: You will need to know how to solve q quadratic equations if you are going to be successful with this type of problem.
use the solution we found previously
we obtained:
Rs240/D = (Rs240 + 0.5D + 1)/(D + 2)
Now solve for D:
Rs240 = D * (Rs240 + 0.5D + 1)/(D + 2)
So 240 = (240D + 0.5D^2 + D)/(D + 2)
240(D + 2) = (240D + 0.5D^2 + D)
240D + 480 = 240D + 0.5D^2 + D
480 = 0.5D^2 + D
D = 30
Try it:
Originally 30 * 8 = Rs240
Alternately 32 * 7.5 = Rs240
Some advice: You will need to know how to solve q quadratic equations if you are going to be successful with this type of problem.
2 answers