The mean of 20 numbers is 40 . If 8 is subtracted from every number and then multiplied by positive quantity k we get new mean as 64 . Find k .
Answers
Answered by
0
Answer:
????????? : )
begbr
Step-by-step explanation:
ndnhfmth
Answered by
2
Answer:
20 × 40 = 800 8 × 64 = 512 answer = 288
Similar questions