If a train travels at a speed of 90 km/h, how long will it take to cover a distance of 270 km?

B. 3 HOURS

In the sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, how many times does the number 5 occur?

A. 1

What character should replace the question mark in the sequence: A, B, C, ?, E?

A. D

In a group of five people, A is older than B but younger than C. D is older than A but younger than E. Who is the youngest?

B. B

In the series: 1, 4, 9, ?, 25, what number should replace the question mark?

A. 16