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HCS (Ex. Br.) Preliminary Examination - 2021 - Answer Key Released
Subject Wise Question -> MATHS -> AVERAGE
10
.
The average of ten numbers is 30. After examining carefully, it is observed that the numbers 15 and 23 have wrongly been taken as 51 and 32 respectively. Find the average after making due corrections.
25.5
27.5
29
30
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