# The average weight of 50 balls is 6 gm

The average weight of 50 balls is 6 gm. If the weight of the bag be included the average weight increases by 0.05 gm, what is the weight of the bag?

(a) 5.05

(b) 6.05

(c) 7.05

(d) 7.55

**All options are incorrect.**

**Correct answer is 2.5 gm. **

**Solution:-**

The average weight of 50 balls = 6 gm

Therefore, total weight of 50 balls = 50 x 6

= 300 gm

If the weight of the bag be included the average weight increased by 0.05 gm

Then, the weight of balls with the bag = 50 x (6 + 0.05)

= 50 x 6.05

= 302.5 gm

So, the weight of the bag = 302.5 – 300

= 2.5 gm

Hence, the correct answer is 2.5 gm.