Sonu decided to donate 12% of her monthly income to a charitable trust. On the day of donation, she changed her decision and donates a sum of ₹2160 which is equal to 125% of what she decided to donate earlier. Her monthly income is:
Let her monthly income be 100x
she decided to donate 12% of the income
i.e, 12x
on the day of donation, she donates the sum of 2160 which is equal to 125% of the previous amount
i.e;
$$2160=\frac{125}{100}\times12x$$
solving, we get
x=144
so now the monthly income is 100x = 100(144)
=14400
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