Question

what is the fraction proposition of 40 science books ?​

Answer 1

Answer:

In a certain library, sixty percent of the book are math related and sixty percent of the remaining books are science related. How many books are neither math nor science related if there are 144 science book?

Okay, so is 60% are maths related, then that leaves 40% for other books. The overall percentage of science books is 60% of 40%. To calculate what percentage this is, you calculate 60/100 x 40. This gives the answer 24, which shows that science books are 24% of the overall books. Using this we can calculate how many books are equal to 1%: 144/24 = 6

Now, we need to find the percentage of books not related to either maths or science: 100 - (60+24) = 16%

To find the number of books: 16 x 6 (Percentage x books per percent)

Which gives 96 books unrelated to science or maths

Step-by-step explanation:

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