math
posted by thomas
Linda did 24 problems out of 25 correctly.In the next test she did twice as many examples correctly but received a mark only half as good.How many problems were there in the second test?

Mia
24/25 correct is a 96% score
If she only did half as good then she got
96/2=48% on the second test
She also got twice as many problems correct.
24*2=48
In this problem the number of problem she got correct is also her percentage.
48 divided by what number will give her a score of 48% 
Reiny
questions in 2nd test  x
so 48/x = (1/2)(24/25)
48/x = 24/50
24x = 2400
x = 100
There were 100 problems
check:
1st test = 24/25 = 96%
2nd test = 48/100 = 48% , which is 1/2 of 96%
Respond to this Question
Similar Questions

Mathematics
Maria answered all the problems on her math test. She answered 80 percent of the problems correctly. If she answered 6 problems incorrectly, how many problems were on the test? 
math
a student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? 
Math problems
On her math test, Terry got 52 questions correct out of 68. What percent of the test questions did Marie answer correctly? 
algebra homework help
A student missed 8 problems on a Chemistry test and received a grade of 47%. If all the problems were of equal value, how many problems were on the test? 
algebra homework help
A student missed 3 problems on a Physics test and received a grade of 94%. If all the problems were of equal value, how many problems were on the test? 
algebra
A student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? 
algebra homework help
student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? 
comparing fractions
A third grade class was given a multiplication quiz. The quiz had 10 problems. Any correctly answered 6 problems, Bobby answered 7 problems correctly, Tom answered 9 problems correctly, and Sue only answered 2 problems correctly. A. … 
MATH
On a test, Hailey answered 12 out of the first 15 problems correctly.If this rate continues, how many of the next 25 problems will she answer correctly? 
Statistics
There are 3 short questions on math test. for each question, 1 mark will be awarded for a correct answer and no mark for wrong answer. if the probability that mary correctly answers a question in a test is 2/3, determine the probability …