The thickness of the ozone layer is measured in Dobson Units (DU). A Dobson Unit is a measure of the total amount of ozone in a column of air stretching from the Earth's surface to the top of the atmosphere. One Dobson Unit represents a layer of ozone that would be 0.01 millimeters thick under standard temperature and pressure conditions.
Bella scored 20% marks in a test and failed by 75 marks, whereas Tara scored 40% marks in the same test and failed by 25 marks. Find the passing marks o...
In a test series, Ishaan scored 50 marks less than Kirti. Kirti scored 34 more marks than Lata. Mohit scored 120 marks which is 40 marks more than Ishaa...
In 2020, Maran earned Rs. 16,500, spending 40% of it and saving the remainder. The following year, his earnings increased by 20%, and his expenditures a...
The monthly incomes of 'A' and 'B' are in the ratio of 3:4, respectively. Both 'A' and 'B' have identical monthly expenditures, while their monthly savi...
The income of ‘A’ increases by 10% every year. If his income 3 years hence from now will be Rs. 29282, then find his income a year before from now.<...
Preeti spends 35% of her monthly income on consumable items. Her annual income is Rs. 5.4 lac. What is the total amount that Preeti spends on consumable...
The total strength of school A is 40% more than that of school B. In school A and B, out of total number of students, 25% and 40% respectively are girls...
Certain number of students from two schools takes part in an examination. Out of a total of 100 students who participated from ABC school, x% failed in ...
A person spent 15% of his monthly income on food and 60% of the remaining on rent. If amount spent on rent is Rs 5798.70, then find the amount sp...
What is the total number of students in a college?
Statement I. In the college 24% of the students are between 18 to 24 years of age, and 45% o...
