Question

Sara Blakeley's net income was Rs. 237650, when income tax was 3 paise in a rupee. When the income tax raises to 7 paise, then find her net income?
1. Rs. 233000
2. Rs. 231650
3. Rs. 227850
4. None of these

Answer 1

Correct Answer - Option 3 : Rs. 227850

Given∶ 

When income tax was 3 paise in a rupee, her net income was Rs. 237650.

Formula Used∶

Basics of percentage.

Calculation∶

Sara's gross income be Rs. x

Then,

⇒

 (100 - 3)% of x = 237650

⇒ 97% of x = 237650

⇒ 97x/100 = 237650

⇒ x = 23765000/97

⇒ x = 245000

When income tax is raised to 7%, we have,

Net income = (100 - 7)% of 245000

⇒ 93% of 245000

⇒ 93/100 ×  245000

⇒ 227850

∴ Her required net income was Rs. 227850.