138k views
4 votes
The Department of Recreation required applicants to score 70% on a skills test. Diane scored 78% on the first half of the test. What was the minimum score Diane needed on the second half of the test?

62%
66%
70%
72%
74%

User SidR
by
8.0k points

1 Answer

6 votes

Explanation:

since we are taking about true halves (I hope), both halves "weigh" the same, and a percentage in one has the same absolute value as in the other.

then the answer is just based on the mean value between both percentages :

x = percentage of the second half

70 = (78 + x)/2

140 = 78 + x

x = 140 - 78 = 62%

she needs at least 62% on the second half to pass the 70% minimum limit of the whole test.

User Cameron Chapman
by
7.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories