Geography, asked by sehaj2444, 9 months ago

average of three no is 7 first two no =5 3rd no=? find third number

Answers

Answered by koushikmkj

0

Answer: 13 is the Third Number.

Answered by nareshchandra7770

0

Answer 11

Explanation:

5+5+x=7×3

10+x=21

x=21-10

x=11

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