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Due to fall of 10% in the rate of sugar, 500 gm more sugar can be purchased for Rs. 140. Find the original rate?

a) Rs. 31.11
b) Rs. 29.22
c) Rs. 33.11
d) Rs. 32.22

Answer: a
Explanation: Money spent originally = Rs. 140
Less Money to be spent now
= 10% of 140
= Rs. 14
Rs. 14 now yield 500 gm sugar
So, Present rate of sugar = Rs. 28 per kg.
If the present value is Rs. 90, the original value = Rs. 100
If the present value is Rs. 28 the original value
$$ = {\text{Rs}}{\text{. }}\frac{{100}}{{90}} \times 28 = {\text{Rs}}{\text{. }}31.11$$

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