Practice Material : Q 1. Find the average of all numbers between 5 and 49 which are divisible by 5. 20 25 30 35 Sol : No. divisible by 5 between 5 and 49 = 5, 10, 15, 20, 25, 30, 35, 40, 45 No. of observations = 9 (ODD) The Average of Odd no. of Observation in consecutive pattern = MIDDLE TERM Average of the No. divisible by 5 between 5 and 49 = 25 2. The sum of four consecutive even numbers is 36 . Find the largest of these numbers. 8 10 12 14 Sol : Let the number numbers be X, X+2 , X+4 , X+6 According to question, X + X+2 + X+4 + X+6 = 36 ...
Quantitative Aptitude And Reasoning.