Every month a man consumes 25 kg rice and 9 kg wheat. The price of rice is 20% of the price of wheat and thus he spends total Rs. 350 on the rice and wheat per month. If the price of wheat is increased by 20% then what is the percentage reduction of rice consumption for the same expenditure of Rs. 350? Given that the price of rice and consumption of wheat is constant :	Choose the correct option:
A) 40%	B) 25%	C) 36%	D) 24%	E) Cannot determined
Solution: Let the price of wheat is x per kg. Then price of wheat will be 5x per kg.   Expenditure on rice = 25*x = 25x.   Expenditure of wheat = 9*5= 
<gadget id="calculator">9*5</gadget>
<output>45</output>
45x.   Total cost,   25x + 45x= 350.   70x = 350.   x = 5.   Hence, price of Rice = Rs. 5 per kg.   Price of wheat = 25 per kg.   Now, price of wheat = 25 ---- 20% ↑----&gt; Rs. 30 per kg.   Let the new amount of rice is N kg, then   N*5 + 9*30 = 350.   N = 16 kg.   %decrease in the amount of rice = [(25-16)*100]/25 = 36%   Answer: Option 36%(25-16)*100 /25= 
<gadget id="calculator">(25-16)*100 /25</gadget>
<output>36</output>
36%   Answer: Option 36%
<result>C</result>
Every month a man consumes 25 kg rice and 9 kg wheat. The price of rice is 20% of the price of wheat and thus he spends total Rs. 350 on the rice and wheat per month. If the price of wheat is increased by 20% then what is the percentage reduction of rice consumption for the same expenditure of Rs. 350? Given that the price of rice and consumption of wheat is constant :