In a test, two people will have to answer 90 questions each. They score 4 points for each correct answer. The test has not ended yet. Each person has already answered 80 questions. Person H has answered 70% of the first 80 questions correctly. Person J has answered 65% of the first 80 questions correctly. What is the minimum number of points that Person H must get from the last 10 questions to win the test?

	Person H	Person J
Current total score	224	208
Additional score if the remaining questions are answered correctly	+ 28	+ 40
Final total score	252	248
	Winner

Score that Person H has earned so far
= 70% x 80 x 4
= ⁷⁰₁₀₀ x 80 x 4
= 224

Score that Person J has earned so far
= 65% x 80 x 4
= ⁶⁵₁₀₀ x 80 x 4
= 208

Remaining questions that each person has to answer
= 90 - 80
= 10

If Person J answers the last 10 questions correctly, the additional score that he will earn
= 10 x 4
= 40

Total score that Person J will earn after answering all the questions
= 208 + 40
= 248

Number of points that Person J is leading Person H by
= 248 - 224
= 24

For Person H to win the test, the number of points he has to earn
= 24 + 4
= 28

Answer(s): 28