Question

Tammy has 40 questions on the final exam 20 questions on part and 20 questions are in part b. Tammy can pass the exam if she answers 15 questions correctly. If in Part A she only has 20% questions correct then she needs to answer ___% of questions correctly in Part B to pass the exam.

Answer 1

Explanation:

part A has 20 questions.

20% are correct, that means

100% = 20

20% = 100%/5 = 20/5 = 4

so, she has 4 questions correctly answered in part A.

she needs 15 correctly answered questions in total.

therefore, she needs to answer 11 questions correctly on part B.

part B has also 20 questions. how many % are 11 questions ?

100% = 20

1% = 100%/100 = 20/100 = 0.2

11 are a many % as 1% fits into 11 :

11/0.2 = 55

she needs to answer 55% of the questions correctly in part B.

Answer 2

Answer: 55%

Explanation:

total: 40 questions

part A: 20

part B: 20

15/40 needed to pass

aka 37.5%

20% of 20 is 4

she needs 11 (15-4) questions correct to pass in part B

11/20 = .55 * 100 = 55% of the questions right in part B