Question

Amita decides to donate 16% of her monthly income to a charitable trust. On the day of donation, she changes her decision and donates a sum of Rs. 3600, which is equal to 120% of what she decided to donate earlier. What is her monthly income (in Rs.)?
1. 18800
2. 18600
3. 18750
4. 18540

Answer 1

Correct Answer - Option 3 : 18750

Calculation:

Let Amita's monthly income be Rs. x

Then, she decide to 16% of Rs. x to a charitable trust

She wanted to denote Rs. 16x/100

But actually, she donated 120% of this 16% of Rs. x

⇒ 120/100 × 16x/100 

Which is equal to Rs. 3600

∴ 120/100 × 16x/100 = 3600

⇒ x = 3000 × 100/16 = 18750

∴ Amita's monthly income is Rs. 18750.