## Ismaiel Kalady is teaching live on Unacademy Plus

AVERAGE PART 1 V SOLVING IN 5 SECS UNIQUE CONCEPTS SHORTCUT TRICKS FOR DEGREE LEVEL PSC

Course Contents - Basic Concepts of Average Different types of Average Problems Unique Concepts for approaching average questions Advanced Tricks to solve in 5 secs Previous year PSC Questions included

What is Average ? . An average, or an arithmetic mean, is the sum of different data divided by 'number of data' Average Sum of data No.of data . Sum Average x No. of data

Important Points smaiel Ka - If a certain distance is covered at x km/hr and the same distance is covered by y km/hr, then the average speed during the whole journey is 2 km/hr xty

Important Points . If average of 10 unknown numbers is 25, we can assume each one of these numbers as 25 itself . If average of 10 unknown numbers is increased by 2, we can easily find the total increase as 10*2

1. The marks obtained by a student in five subjects are 68,73,62,85 and 79. Find the average score. a) 73 b) 73.4 c) 75 d) 74.5 . Ans

1. The marks obtained by a student in five subjects are 68,73,62,85 and 79. Find the average score. a) 73 b) 73.4 c) 75 d) 74.5 . Ans Sam o data- 63+73+62+95+79 367

1. The marks obtained by a student in five subjects are 68,73,62,85 and 79. Find the average score. a) 73 b) 73.4 c) 75 d) 74.5 . Ans Sam o data- 63+73+62+95179 367 367 7 5

2. Average income of A and B is Rs. 3000 and of C and D is Rs. 500. What is the average income of A, B, C and D (a) 1500 (b) 1750 (c) 1700 (d) 2000 . Ans

2. Average income of A and B is Rs. 3000 and of C and D is Rs. 500. What is the average income of A, B, C and D (a) 1500 (b) 1750 (c) 1700 (d) 2000 . Ans Avg incame of ABs 3000