Question

एक आदमी अपनी आय का 60% खर्च करता है यदि उसकी आए 30% बढ़ जाए और खर्च 20% बढ़ जाए तो उसके बचत में प्रतिशत वृद्धि या कमी बताएं

Answer 1

Can you please ask the question in a way in which all could understand ?

Answer 2

Answer:

Percentage increased = 18%

Step-by-step explanation:

Let the salary of the person be Rs. x

Expenses = 60% of the salary

⇒ Expenses = 0.6 x

Savings = 0.4x

Now, salary is increased by 30%

⇒ New salary = x + 30% of x

                       = 1.3x

Expense is increased by 20%

⇒ Increased expense = 0.6x + 20% of 0.6x

                                     = 0.72x

Now, New Savings = 1.3x - 0.72x

                       = 0.58x

Increase in savings = 0.58x - 0.40x

                                = 0.18x

Percentage increase = 0.18x/x × 100 = 18%