Rajan spent 10% of his salary on rent. He spent 20% of the remaining part of his salary on transport. After this, he spent 40% of the balance of his salary on food. Further. he spent 80% of the balance on various bills. He deposits Rs.5000 in the bank and kept the remaining Rs.1480 for his own petty expenditure. Find his monthly salary (in Rs.).
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e 75000.
Let the monthly salary of Rajan = 100x
Money spent on Rent = 10% of salary = 10x
Remaining money = 90x
Money spent on transport = 20% of 90x = 18x
Remaining money = 72x
Money spent on food = 40% of 72x = 28.8x
Remaining money = 43.2x
Money spent on various bills = 80% of 43.2 = 34.56x
Remaining money = 8.64%
Now this 8.64x = 5000 + 1480
⇒ 8.64x = 6480
⇒ x = 750
Total monthly salary = 750 × 100 = 75000