The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and his original consumption is 


(a) 
1:3 
(b) 
1:4 
(c) 
1:5 
(d) 
1:6 
The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and his original consumption is 


(a) 
1:3 
(b) 
1:4 
(c) 
1:5 
(d) 
1:6 
Let the original consumption be 1 unit costing Rs. 100.
New cost = Rs. 125. New consumption = unit.
i.e., 1:5.