A cyclist covers a distance of 120 kilometers in 4 hours. If he increases his speed by 10 km/h, how long will it take him to cover the same distance?

B. 3 HOURS

In the sequence 5, 10, 15, 20, 25, 30, how many times does the number 25 appear?

A. 1

Which of the following is a factor of the polynomial x^2 - 5x + 6?

A. X - 2

What is the next letter in the series: A, C, E, G, ?

B. H

In a certain code, 'HELLO' is coded as 85121215. What is the code for 'WORLD'?

A. 231815124