Due to reduction of 25/4% in the price of sugar , a man is able to buy 1kg more for Rs.120. Find the original and reduced rate of sugar.  Choose the correct answer:
A) Rs.7.50 per kg	B) Rs.2.50 per kg	C) Rs.5 per kg	D) Rs.6.25 per kg	E) Rs.10 per kg
Let the original rate be Rs.x per kg.   Reduced rate = Rs.[(100-(25/4))*(1/100)*x}]=Rs.15x/16per kg   120/(15x/16)-(120/x)=1   (128/x)-(120/x)=1   x=8.   So, the original rate = Rs.8 per kg   Reduce rate = Rs.[(15/16)*8]per kg = Rs.7.50 per kg   Rs.7.50 per kgnswer is Rs.7.50 per kg.
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Due to reduction of 25/4% in the price of sugar , a man is able to buy 1kg more for Rs.120. Find the original and reduced rate of sugar.