Kiran bought 9 kgs of iron at 20 Rs per kg. She sold 9 kgs of iron at 26 Rs pr kg. Calculate how much profit did she earned?
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When the price of potatoes is reduced by 20% there must be saving of 20% on Rs. 80 i.e. of Rs. 16.
But, instead of saving Rs. 16, I purchased 2 kg potatoes.
∴ Reduced price of potatoes =
2
16
=Rs.8 per kg.
Now, let
Original price of potatoes be Rs. x.
Reduced price Original Price = R.P. : O.P.
(R.P) : (O.P.)
80 : 100 = 8 : x
∴x=
80
100×8
=Rs.10
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