SpletUsing the shortcut, based on the same method used previously: Step 1: Calculate the change in average = 18.2 – 18 = 0.2. This change in 0.2 is reflected over a sample size of 30. The new age is increased by 30 × 0.2 = 6 years above the average i.e. 18 + 6 = 24; which is the age of the teacher. Thinkquest- The average age of 26 students in an ... SpletSolution: Required number = H.C.F. of (91 – 43), (183 – 91) and (183 – 43) H.C.F. of 48, 92 and 140 = 4. Correct Answer : A Question: Which of the following is greatest number of four digits which is divisible by 15, 25, 40 and 75 is: Options A. 9700 B. 9600 C. 9800 D. 9650 Solution: Greatest number of 4-digits is 9999.
Shortcuts in Quantitative Aptitude for Competitive Exams
SpletStep 1 : Make the same number of decimal places in all the given numbers by suffixing zero (s) in required numbers as needed. i.e., the numbers can be writtten as .63, 1.05, 2.10. Step 2 : Now find the LCM/HCF of these numbers without decimal. Without decimal, the numbers can be written as 63, 105 and 210 . Splet04. nov. 2024 · (11)Even & Odd Numbers: All the numbers divided by 2 are even numbers. Whereas the ones not divisible by 2 are odd numbers. Example: 4, 6, 64, 100, 10004 etc … baju melayu baju kurung
Aptitude - Number System - TutorialsPoint
Splet31. jan. 2024 · Method – 2 : Division trick for numbers 5, 25 and 125 in place of divisor. Example – 4 : 269874 ÷ 5 = ? Here we apply the simple logic i.e 5 = 10 / 2 . When compare to division by 5, it is very easy to multiplying the number by 2. i.e 269874 ÷ (10 ÷ 2) = … Generally the cube of a number denoted as, 3 is written a little up to the right of the … Easy Multiplication tricks for 2digit, 3digit and 4digit numbers. Multiplication … Divisibility Rules for easy calculations of mathematics. Here given divisibility rules … b) For doing the square of any two digit number having number of shortcuts are … Square Root calculation methods square root formulas. Definition of square root: … Topics in Quantitative aptitude math for all types of exams. In this page explained … SpletAptitude Number System - In Decimal number system, there are ten symbols namely 0,1,2,3,4,5,6,7,8 and 9 called digits. A number is denoted by group of these digits called as numerals. ... 0 th position digit is called unit digit and is the most commonly used topic in aptitude tests. Types of Numbers. Natural Numbers - n > 0 where n is counting ... ba jumeirah beach hotel