Let x liters of pure alcohol be added to the mixture. Initially, the amount of alcohol in the mixture is 25% of 60 liters, which is 15 liters. After adding x liters of pure alcohol, the total amount of alcohol becomes 15 + x liters, and the total volume of the solution becomes 60 + x liters. The final concentration of alcohol is 40%. We can set up the equation: (15 + x) / (60 + x) = 40/100 = 2/5. Cross-multiply: 5 × (15 + x) = 2 × (60 + x), 75 + 5x = 120 + 2x, 5x - 2x = 120 - 75, 3x = 45, x = 45 / 3 = 15 liters. Correct option: c) 15 liters.
The SEMICON India 2024 conference was inaugurated in which city?
BrahMos Aerospace was formed as a joint venture between Defence Research and Development Organisation (DRDO) of India and which other country?
In which Indian state is the Great Himalayan National Park located?
National Bravery Award is given every year by the Prime Minister of India on:
Hero MotoCorp has unveiled a new brand named, __________, for its electric vehicles.
Which of the following are the national and official language of India respectively?
Which Indian state enacted the 'Aparajita' anti-rape legislation amidst extensive political discussions?
____________ has tied up with the Reliance Jio Money for one click payment service.
How many chambers are present in the heart of a fish?
Name the media company that purchased the legendary studio of 21st Century Fox.
