Teena spends 30% of her salary on food, 30% of the rest on fuel, and saves the remaining Rs 4,900. What is Teena’s salary?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. Rs. 10,000.
Let the salary of Teena be x
Teena spends 30% of her salary on food = 30x/100
She spent 30% of the rest on fuel = 30x/100 × 70/100 = 21x/100
According to the question;
⇒ 30x/100 + 21x/100 + 4900 = x
⇒ (30x + 21x + 490000) = 100x
⇒ 51x + 490000 = 100x
⇒ 49x = 490000
⇒ x = 10000