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Average of five numbers is 12. If four of the numbers are 19, 16, 13 and 9 then what will be the 5th number ?

+1 vote
posted May 11, 2015 by Sidharth Malhotra

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5 Solutions

+2 votes


therefore, the no. is 3

solution May 12, 2015 by Naga Jyothi
+1 vote

19+16+13+9+3=60/5=12 ,, ans is 3

solution May 11, 2015 by Ankit Kamboj
0 votes

let the fifth number be x.
we have

solution Mar 11, 2016 by Ashutosh Kumar Anand
0 votes

Let 5 numbers are - x, y, z, a, b

Now their average is :-
(x+y+z+a+b)/5 = 12
19+16+13+9+b = 60
b = 60-57
b = 3

Ans : 3

solution Mar 30, 2016 by Neha Gupta
0 votes

19+16+13+9 = 57
Avg = 12, So Total = 12*5 = 60

5th Number = 60-57

solution Apr 1, 2016 by Sarath Chandran

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