Question

What is the monthly income of Mr. X?
I Mr. X spends 85% of his income on various items and remaining amount is saved.
II. Monthly saving of Mr. X is Rs 4,500/-
III. Out of the total money spent by Mr. X in a month, one-fifth is spent on food and remaining amount of Rs 20,400 on other items.

• A. Only II
• B. Only III
• C. Only I and either II or III
• D. Question cannot be answered even with the information in all three statements
• E. None of these

Answer 1

The correct option is C Only I and either II or III

From statements I and II,
Let Mr. X's monthly income Rs x. Then
$\frac{15\times x}{100}=4500\Rightarrow x=\frac{4500\times 100}{15}=Rs30000$
From statements I and III,
$x\times \frac{4}{5}\times \frac{85}{100}=20400\Rightarrow x=\frac{20400\times 5\times 100}{4\times 85}=Rs30000$