Subject: Mathematics
Book: Maths Mastery
Roman numerals, often seen in old clocks or historical documents, use letters like I, V, X, L, C, D, M to represent numeric values. For example, IX means 9 (10 – 1), and XVI means 16 (10 + 5 + 1). Generally, if a smaller numeral precedes a larger one, you subtract; otherwise, you add. So MCMLXXXIV is 1984. By learning these rules—like I=1, V=5, X=10, L=50, C=100, D=500, M=1000—you can decode centuries-old texts, interpret monument inscriptions, or even style modern events. Converting Roman numerals fosters a deeper appreciation of number systems and historical contexts.
The sum of the reciprocals of two numbers is 1/4. If one number is 12, what is the other?
View QuestionThe LCM of two numbers is 60, and their HCF is 5. If one of the numbers is 20, what is the other number?
View QuestionIf the ratio of two numbers is 3:5 and their HCF is 4, what are the numbers?
View QuestionIf sin(θ) = 0.6 and θ is acute, what is cos(θ)?
View QuestionIf a:b = 7:9 and b:c = 5:6, what is a:c?
View QuestionA number is increased by 20% and then decreased by 20%. What is the net change?
View QuestionIf a = 2 and b = 3, what is the value of (a^2 + b^2)?
View QuestionIf the sum of three consecutive integers is 72, what are the integers?
View QuestionIf the radius of a circle is 7 cm, what is its circumference?
View QuestionIf x^3 - 3x^2 + 4 = 0, what is one root of the equation?
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