Question

The average of 3 numbers is 26 if each number is multiplued by 5 the new average become?

Answer 1

$average = \frac{sum \: of \: observations}{no. \: of \: observations} \\ 26 = \frac{3 \times 26}{3} (given) \\ if \: every \: no \: is \: multiplied \: by \: 5 \: then \\ = \frac{5 \times 3 \times 26}{3} \\ = 5 \times 26 \\ = 130 \\ please \: mark \: as \: brainliest$