Subject: Mathematics
Book: Maths Mastery
Rounding numbers helps to simplify data interpretation, especially when dealing with lengthy decimals or when exact precision is not essential. The core principle: if the digit to the right of your rounding place is 5 or more, you round up; otherwise, you round down. For instance, to round 3.678 to the nearest tenth, look at the hundredths digit (7); since it’s ≥ 5, 3.678 becomes 3.7. Similarly, rounding 3.678 to the nearest hundredth yields 3.68. Rounding is widely used in financial transactions (rupee/cents rounding), scientific measurements, and everyday approximations for easier communication and calculation.
A sum of money doubles itself in 5 years at simple interest. What is the rate of interest?
View QuestionIf sin(A) = 3/5 and cos(B) = 5/13, where A and B are acute angles, what is sin(A+B)?
View QuestionIf x + 1/x = 5, what is the value of x^2 + 1/x^2?
View QuestionWhat is the sum of the interior angles of a hexagon?
View QuestionIf a cone has a radius of 5 cm and a height of 12 cm, what is its slant height?
View QuestionIf log(100) = 2 and log(10) = 1, what is log(1000)?
View QuestionA number is increased by 20% and then decreased by 10%. What is the net change?
View QuestionA train 120 meters long is moving at a speed of 54 km/h. How long will it take to pass a pole?
View QuestionIf x = 3 and y = 4, what is the value of x^2 + y^2?
View QuestionWhat is the cube of 4?
View Question