# Ratio, Rate and Proportion

**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 Math Tutor – Dr Loo

I am a PhD holder with 8 years of teaching experience at secondary school and university. My expertizes are mathematics, statistics, econometrics, finance and machine learning.

Currently I do provide consultation and private tuition in Singapore. For those who are looking for math tutor in Singapore or statistics tutor in Singapore, please feel free to contact me at +65-85483705 (SMS/Whatsapp/Telegram).

Some of the math tuition in Singapore I provide includes O-level 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.