The price of a certain item is increased by 15%. If a consumer wants to keep his expenditure on the item same as before, how much percent must he reduce his consumption of that item? 


(a) 
10% 
(b) 
13% 
(c) 
16% 
(d) 
15% 
The price of a certain item is increased by 15%. If a consumer wants to keep his expenditure on the item same as before, how much percent must he reduce his consumption of that item? 


(a) 
10% 
(b) 
13% 
(c) 
16% 
(d) 
15% 