Question

7. The average of three numbers is 24. If one of the
numbers is 18 and the other is 29, find the third
number :
(A) 24
(B) 25
(C) 26
(D) 27 ​

Answer 1

Explanation:

as we know that average = sum of numbers/no of numbers

let the third no be x

a.q

24=18+29+x /3

24= 47+x/3

24×3=47+x

72-47=x

25 =x

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