Question

The average of six number is 20 if one number is removed average become 15 what is the removed number.

Answer 1

Answer:

0. 5

Step-by-step explanation:

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Answer 2

Answer:

45

Step-by-step explanation:

Average = 20

i.e. Sum of 6 numbers/6 = 20

Sum of 6 numbers = 20*6 = 120

120-X / 5 = 15 ( X is the number being removed and denominator becomes 5 because one no. is being removed)

120-X = 15*5 = 75

X = 120-75

X = 45