Sum of 50 numbers is 490. If greatest number is 20 more than the least. Least number is 0 and repe

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31 May 2013 average

Sum of 50 numbers is 490. If greatest number is 20 more than the least. Least number is 0 and repeated twice then the average of remaining 47 numbers will be

OPtion

1) 8
2) 9.5
3) 10
4) 12
5) 12.2
6) 12.5
7) 12.9
8) 13
9) 8.6
10) none of these

Solution

greatest number = 20
least number = 0 and repeated twice so sum of these three numbers = 20+0+0 = 20
so sum of 47 numbers = 490-20 = 470
so avg = 470/47 = 10

Correct Option: 3 Best Solution (0)