A pack of four chocolate balls cost £1.20.what is the price per unit.

£0.3

Step-by-step explanation:

The cost of 4 chocolates bars is £1.20. The cost of 1 chocolate bars is . The cost of 1 chocolate bars is £0.3. Therefore, the price per unit of chocolate bars is £0.3.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

answer: the answer is e

step-by-step explanation: