Subject: mathqa
Question: for 2 consecutive yrs , my incomes are in the ratio of 4 : 7 and expenses in the ratio of 3 : 5 . if my income in the 2 nd yr is rs . 42000 & my expenses in the first yr in rs . 21000 , my total savings for the two - year is
Option: 
A: rs . 10000
B: rs . 8000
C: rs . 9000
D: rs . 9800
Answer: A