Question

. The mean weight of a class of 34 students is 46.5 kg. If the weight of the new boy is included, the mean is rises by 500 g. Find the weight of the new boy.

Answer 1

Answer:

Now Average Weight Of Class = 46.5 kg

Now Average Weight = Total Weight/Number 

46.5 = Total Weight/34

Total Weight = 46.5*34 = 1581

Now If Teacher Is Included

Let Weight Of Techer Be x kg

Now

Total Weight = 1581+x

Now Number = 35

Average Weight = 46.5+0.5 = 47

So

1581+x/35 = 47

1581+x  = 1645

x = 64

So Weight Of Teacher Is 64 Kg

Step-by-step explanation: