A man spends 2/5 of his income on food, 3/10 on rent, and the rest he saves. If his savings are Rs. 6000, find his income

A. 20,000
B. 25,000
C. 30,000
D. 35,000

Solution:
Fraction spent = 2/5 + 3/10 = 4/10 + 3/10 = 7/10.
So savings fraction = 3/10.
Income × 3/10 = 6000 → Income = 6000 × 10/3 = 20,000.
Answer: A.