The rate of a certain variety of rice increases by 20%. A man gets that variety of rice 3 kg less for Rs.630 in comparison with the quantity that he would have got at the old rate. Find the old rate of that variety of rice.
Given:
The rate of a certain variety of rice increases by 20%
A man gets 3 kg less rice for Rs. 630 at the new rate compared to the old rate.
Solution:
Using the initial rate =5 x
After 20% increment new rate = 5x +20%of 5 =6x
According to question
126 -105 =3x
x = 7
Thus, the old rate of the rice is 5x=Rs35
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