If the code for 'CAT' is represented by the numbers 3, 1, 20 and the code for 'DOG' is represented by 4, 15, 7, what is the code for 'BAD'?

A. 2, 1, 4

Identify the missing letter in the pattern: A, C, E, ?, I.

A. G

If 'FISH' is coded as 6, 9, 19, 8 and 'BIRD' is coded as 2, 9, 18, 4, what is the code for 'HIDE'?

A. 8, 9, 4, 5

If the input is '3 1 4 2', what will be the output after sorting the numbers in ascending order?

A. 1 2 3 4

If the roots of the quadratic equation x² - 5x + k = 0 are real and equal, what is the value of k?

A. 6.25
Posted in:  Quadratic Equations -  Algebra -  Mathematics