Question

the mean of five numbers is 80,out of which mean of 4 numbers is 46 ,find the 5th number
option
1) 4
2) 20
3) 434
d) 66​

Answer 1

Answer:

216 should be the ans but as it's not given in the option, the ans is none of the above

Step-by-step explanation:

thanks!

Answer 2

Since, the mean of five numbers is 80, out of which mean of 4 numbers is 46

So, the 5th number

= Sum of 5th Observation - Sum of 4th Observations

=(80×5)−(46×4)

=400−184=216

hope it helps you