Question

please solve this in ratio and proportion​

Answer 1

Answer:

A ratio is a comparison of two quantities. A proportion is an equality of two ratios. To write a ratio: Determine whether the ratio is part to part or part to whole.A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d.

hope it helps

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Answer 2

Answer:

3. 72% of 25 students are interested in mathematics. How many are not interested

in mathematics?

pls friends it's urgent , light ray travels from one medium to another with the same refractive index