In a certain code, the word 'DOG' is coded as '47-15-7'. What is the code for the word 'CAT'?

A. 3-1-20

Find the missing number in the series: 5, 10, 20, 40, ?

C. 80

What is the value of 2^3?

B. 8

Choose a word that is similar to the group: 'diligent, industrious, hardworking'.

B. PRODUCTIVE

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

A. 1