Answer:
$1050
Explanation:
To solve, multiply your two expenses against your $6000 and find the difference.
The man spends 1/5 of his salary on children's education.
To find how much he spends on his children's education in dollars, multiply 1/5 against $6000.
The man spends $1200 on children's education.
The man spends 5/8 of his salary on his aged mother and unemployed sister.
Repeat the same process as the first step, this time multiplying 5/8 against $6000.
The man spends $3750 on his aged mother and unemployed sister.
Add these two expenses together.
The man has combined expenses of $4950.
To find how much money he has left, subtract his expenses from his $6000 income.
The man has $1050 remaining.