**Given, numbers are:**

31, 35, 27, 29, 32, 43, 37, 41, 34, 28, 36, 44, 45, 42, 30

**Arrange in increasing order:**

27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 41, 42, 43, 44, 45

n = 15 (odd)

**Therefore,** median \(=\frac{n+1}{2}\) value

\(=\frac{15+1}{2}\)

= 8^{th} value = 35 kg

If the weight 44kg is replaced by 46 kg and 27 kg is replaced by 25 kg

Then new values in order be

25, 28, 29, 30, 31, 32, 34, 35, 36, 37, 41, 42, 43, 45, 46

n = 15 (odd)

**Therefore,** new median \(=\frac{n+1}{2}\)

\(=\frac{15+1}{2}\)

= 8^{th} value = 35kg