# Ratio, Rate and Proportion

When students are learning ratio and proportion in secondary math classes, they will likely to deal with the concept like the ratios involving rational numbers. In addition to that, they will also learn on how to write a ratio in its simplest form.

**Question**

1. Which of the following ratio is not equivalent to the rests?

a) 9:17

b) 45:85

c) 27:51

d) 62:119

2. If x:3 = 6:9, what is the value of x?

3. Is 10:15 equal to 2:3?

4. There were 20 males and 100 females who have attended a dinner yesterday. How many proportion of the attendees were males?

**Answer**

- D
- 2
- Yes
- 1/6

## About the Singapore Math Tutor - Dr Loo

I am a PhD holder with 9 years of teaching experience on teaching quantitative subjects at secondary school and university levels. My expertise are mathematics, statistics, econometrics, finance and machine learning.

Currently I do provide consultation and tuition for math tuition in Singapore. If you are looking for secondary math tutor in Singapore, JC H2 math tutor or statistics tutor in Singapore, please feel free to contact me at +65-85483705 (SMS/Whatsapp).

Among the Singapore math tuition that I provide, this includes Singapore secondary math tuition (E-math tuition & A-math tuition) and also JC Math Tuition (H1 Math Tuition & H2 Math Tuition). On the other hand, my statistics tuition in Singapore mostly focus on pre-university level until postgraduate level. For those who are looking for online tutoring service, the online O-level math tuition and online A-level math tuition are also available.