Question

7.
If the average of 8 observations is 5. If an observation 12 is removed, then the average of new set of
observations is
[ ]
1) 10
2) 11
3) 12
8.
The average of a class of twenty boys is 15 years. If eight boys of 18 years average join the class. Find
[ ]
the new average of the class
1) 15.86 yrs
2) 17 yrs
3) 20 yrs
4) 18.6 yrs​

Answer 1

Step-by-step explanation:

बट भठशढछनढछनजचधजोधडॅछॅछोधझखॅचैनझचधझपोधछणधचजनपझठ

Answer 2

Answer:

4

Step-by-step explanation:

8*5-12/4

= 4

I hope this is helpful