1.

The mean weight of 8 numbers is 15. If each number is multiplied by 2, what will be the new mean?

Answer»

We have,

The mean weight of 8 numbers is 15

Then, the sum of 8 numbers = 8 * 15

= 120

If each number is multiplied by 2

Then, New mean = 120 * 2

= 240

Therefore, new mean \(=\frac{240}{8}\)

= 30



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