Question

The mean of 11, 13, 18, y, 14, 21 and 26 is 17. Find the value of y.

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Answer 1

Step-by-step explanation:

For mean we should add two middle values by 2.

18+y/2=17

18+y=34

y=34-18

y=16

Answer 2

Answer:

y = 16

Step-by-step explanation:

===>18+y/2=17

===>18+y=34

===>y = 34-18

===>Hence,y = 16 is correct answer.