31) The average weight of 40 coins is 7 gm. If the weight of the bag b

1.	31) The average weight of 40 coins is 7 gm. If the weight of the bag be included the average weight increase by. 0.07 gm. What is the weight of the bag? (a) 3.87 gm (b) 5.87 gm (c) 9.87 gm (d) 7.87 gm
Answer» Step-by-step explanation: SUM of 40 COINS = 7*40 = 280 Bag WEIGHT ADDED, which is Xgm 280+x/41 = 7+0.07 x= 289.87-280 = 9.87gm OA :: D

31) The average weight of 40 coins is 7 gm. If the weight of the bag be included the average weight increase by. 0.07 gm. What is the weight of the bag? (a) 3.87 gm (b) 5.87 gm (c) 9.87 gm (d) 7.87 gm

Answer»

Step-by-step explanation:

SUM of 40 COINS = 7*40 = 280

Bag WEIGHT ADDED, which is Xgm

280+x/41 = 7+0.07

x= 289.87-280 = 9.87gm

OA :: D