Solution:
She spent 90% + 3% = 93% of her income.
The actual income will be represented as 100% in form of percentage.
Therefore, she is now left with 100% - 93% = 7% of her income.
[1 Mark]
Let her income be ₹x.
According to the given information, ₹1,750 represents 7% of her actual income. This can be expressed mathematically as:
7100×x=1750
⇒ x=1750×1007
⇒ x=₹25,000.
[1 Mark]