Explanation:

- The average of U, V, and W is 48. This means:

(U + V + W) / 3 = 48

Simplifying gives:

U + V + W = 144

- The average of V and W is 48. This means:

(V + W) / 2 = 48

Simplifying gives:

V + W = 96

- To find U, subtract the second equation from the first:

(U + V + W) - (V + W) = 144 - 96

U = 48

- Option:1, 46 – Incorrect

- Option:2, 44 – Incorrect

- Option:3, 42 – Incorrect

- Option:4, 48 – Correct