Karen can read 10 pages and complete 15:math problems in 30 minutes, how long
Sorry, but I'm unable to understand the completion of your sentence. Could you please rephrase your question?
Karen can read 10 pages and complete 15 math problems in 30 minutes, so on average, it takes her 30/10 = <<30/10=3>>3 minutes to read 1 page.
Similarly, it takes her 30/15 = <<30/15=2>>2 minutes to complete 1 math problem.
Therefore, it would take Karen 3 * 25 = <<3*25=75>>75 minutes to read 25 pages.
It would also take her 2 * 35 = <<2*35=70>>70 minutes to complete 35 math problems.
Therefore, it would take Karen 75 + 70 = <<75+70=145>>145 minutes to read 25 pages and complete 35 math problems. Answer: \boxed{145}.
To find out how long it takes for Karen to complete 100 math problems, we need to determine the time it takes for her to complete one math problem. From the given information, we know that Karen can complete 15 math problems in 30 minutes.
So, the time it takes for Karen to complete one math problem is calculated by dividing the total time (30 minutes) by the number of problems completed (15):
Time per problem = Total time / Number of problems completed
Time per problem = 30 minutes / 15
Time per problem = 2 minutes
Now we can use the time per problem to find out how long it will take for Karen to complete 100 math problems.
Time to complete 100 problems = Time per problem * Number of problems to be completed
Time to complete 100 problems = 2 minutes * 100
Time to complete 100 problems = 200 minutes
Therefore, it would take Karen 200 minutes to complete 100 math problems.