Question
In 2023, Meena spends 65% of her salary. In 2024, her
salary increased by 35%, and she raised her expenditure by 25%. What is the percentage increment in her savings?Solution
ATQ,
Let the income of Meena in 2023 be Rs. 100e
Expenditure of Meena in 2023 = 0.65 × 100e = Rs. 65e
Savings of Meena in 2023 = 100e - 65e = Rs. 35e
Income of Meena in 2024 = 1.35 × 100e = Rs. 135e
Expenditure of Meena in 2024 = 1.25 × 65e = Rs. 81.25e
Savings of Meena in 2024 = 135e - 81.25e = Rs. 53.75e
Therefore, percentage increase in savings = [(53.75e - 35e) ÷ 35e] × 100 = 53.57%
What does trypsin do?
What is the colour of the outer zone of complete combustion of candle flame?
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Which of the following isotope of hydrogen is radioactive in nature?
Which of the following is a water soluble vitamin?
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
What is the nature of the pH of milk?
Chlorophyll-a is present in all photosynthetic organisms except
Water from soil enters into the root hairs owing to :
_____ is used for making chemical apparatus like beakers, flasks, etc.