Introduction Simplification in mathematics involves reducing an expression or equation to its simplest form. It could involve solving operations in brackets, simplifying roots and exponents, or reducing fractions to their lowest terms. By simplifying, we can make complex mathematical problems more manageable. Importance in SSC, RRB, and Banking Exams Simplification forms the basis of many …
Introduction The number system is the way we represent and use numbers in mathematics. It includes a wide variety of number types including integers, fractions, decimals, exponents, and roots, each with its own set of rules and operations. Importance in SSC, RRB, and Banking Exams Knowledge of the number system is foundational for anyone preparing …
Introduction Logarithms, often referred to as “logs”, is an integral part of advanced mathematics. Introduced in the early 17th century by John Napier, they are the reverse of exponentiation. Logarithms are extensively used in various fields including computer science, physics, engineering, and statistics. They play a crucial role in calculations involving exponential growth or decay, …
Introduction In this chapter, we will focus on a key financial concept, Compound Interest, which plays a vital role in banking, financial planning, and investment decision-making. Compound interest is the interest calculated on the initial principal and the interest which has been added to the principal while calculating the interest for the next period. Importance …
Introduction This chapter is dedicated to a critical theme in the quantitative aptitude portion of various competitive examinations: Time and Distance. This topic revolves around calculations involving time, distance, and speed, and their interrelation. A basic understanding of algebra and units of measurement is crucial to mastering this topic. Importance in SSC, RRB, and Banking …
Introduction Time and Work is a significant topic in the realm of competitive examinations. It deals with the rate at which different entities can complete a task, and the relationship between time taken and work done. Mastering this topic requires a solid understanding of ratios and proportions, as well as a logical and analytical approach …
Introduction Surds and indices are key components of mathematical calculations and play a crucial role in various quantitative aptitude exams such as the Staff Selection Commission (SSC), Railway Recruitment Board (RRB), and Banking Exams. Surds refer to numbers left in ‘square root form’ or ‘cube root form’ that cannot be simplified to remove the square …
Introduction The Highest Common Factor (H.C.F) and Least Common Multiple (L.C.M) are fundamental concepts in elementary mathematics. They have widespread applications across a range of problems in the quantitative aptitude section of competitive examinations like SSC (Staff Selection Commission), RRB (Railway Recruitment Board), and various banking exams. H.C.F, also known as the Greatest Common Divisor …
In a 100-meter race, A finishes 10 meters ahead of B. If A takes 10 seconds to complete the race, find B’s speed.a) 10 m/sb) 8 m/sc) 9 m/sd) 7 m/s Solution: Let B’s speed be x m/s. Since A finishes 10 meters ahead, B has to cover 100 – 10 = 90 meters in …
Discounts A shopkeeper offers a discount of 20% on a shirt priced at Rs 800. What is the discounted price? a) Rs 640 b) Rs 720 c) Rs 760 d) Rs 820 Answer: b) Rs 720 A laptop is originally priced at Rs 50,000. If it is sold at a 10% discount, what is the …
