1.

Average of five numbers is 16 and four of the number are 12 , 14, 16 , and 18 find the fourth numbers​

Answer»

Step-by-step EXPLANATION:

Given:

average of five numbers is 16 and four of the number are 12 , 14, 16 and 18

To find:

the REMAINING number

Solution:

The given numbers are 12,14,16,18

Let the ANOTHER number be X

SUM of five numbers = 12+14+16+18+X

=60+X

Average of five numbers =16

Average= Sum of observations/no.of

observations

=>16=(60+X)/5

=>(60+X)/5=16

=>60+X=5×16

=>60+X=80

=>X=80-60

=>X=20

Answer:

The fifth number is 20


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