## Ismaiel Kalady is teaching live on Unacademy Plus

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

1.Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of the new person is; (a) 50kg (b) 61kg (c) 86kg (d) 85kg . Ans

1.Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of the new person is; (a) 50kg (b) 61kg (c) 86kg (d) 85kg . Ans Avg weighb -persons increased

1.Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of the new person is; (a) 50kg (b) 61kg (c) 86kg (d) 85kg . Ans Avg weighb -persons increased So, eight of huo person 8str

2.The average of seven numbers is 18.lf one of the number is 17& if it is replaced by 31,then the average becomes: (a) 21.5 (b) 19.5 (c) 20 (d) 21 . Ans

2.The average of seven numbers is 18.lf one of the number is 17& if it is replaced by 31,then the average becomes: (a) 21.5 (b) 19.5 (c) 20 (d) 21 . Ans Avg of nambers- 13 incyease in vahe 31-17- 7 nambers

2.The average of seven numbers is 18.lf one of the number is 17& if it is replaced by 31,then the average becomes: (a) 21.5 (b) 19.5 (c) 20 (d) 21 . Ans Avg of nambers- 13 incyease in vahe 31-17- 7 nambers 80, new average B+2.207

3. 30 pens and 75 pencils were purchased for Rs. 510. if the average price of a pencil was Rs. 2.00, find the average price of a pen. a) Rs. 12 b) Rs. 15 c) Rs. 19 d) Rs. 25 . Ans

3. 30 pens and 75 pencils were purchased for Rs. 510. if the average price of a pencil was Rs. 2.00, find the average price of a pen. a) Rs. 12 b) Rs. 15 c) Rs. 19 d) Rs. 25 . Ans Ayg. price ok pencil- Rs? of .75, pencils-75X2 /SD

3. 30 pens and 75 pencils were purchased for Rs. 510. if the average price of a pencil was Rs. 2.00, find the average price of a pen. a) Rs. 12 b) Rs. 15 c) Rs. 19 d) Rs. 25 . Ans Yg. price of pencil- Rs 2 Price o2 75 pencils=75X2 30 360R /2