A person spends 75% of his income. If his income increases by 20% and expenses by 15%, his savings will increase by 


(a) 
17% 
(b) 
20% 
(c) 
33% 
(d) 
35% 
A person spends 75% of his income. If his income increases by 20% and expenses by 15%, his savings will increase by 


(a) 
17% 
(b) 
20% 
(c) 
33% 
(d) 
35% 
Let the original income = Rs. 100. Then, saving = Rs. 25 and expenditure = Rs. 75.
New income = Rs. 120. New expenditure = 115% of Rs. 75 = Rs.
New saving = Rs. Rs.
Increase in saving = Rs. Rs.
Percentage increase =