ssc online exam test cgl

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SSC CGL Tier 1 :: QA Test 9
Home » SSC CGL Tier 1 » QA Test 9 » General Questions - Discussion
1 . The mean of 100 values is 45. If 15 is added to each of the first forty values and 5 is subtracted from each of the remaining sixty values, the new mean becomes
[ A ]    45 [ B ]    48 right
[ C ]    51 [ D ]    55
Answer : Option B
Explanation :
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