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### Primary 5 Problem Sums/Word Problems - Try FREE

- Percentage: If you watch these video solutions, you'll realise how easy it is! > Percentage Exercise 5 > 2
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**Score :**

(Single Attempt)

**Question
**

There are some red, blue, green and yellow crayons in a box.

12% of the crayons in the box are red in colour.

The number of green crayons is `1/6` of the number of red crayons.

The number of blue crayons is `3/7` of the total number of red and green crayons.

The remaining crayons are yellow crayons.

The number of yellow crayons is 180 more than the total number of red, green and blue crayons.

(a) How many crayons are blue in colour?

(b) What is the total number of crayons in the box?

*Notes to student:*

*If the question above has parts, (e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12*

The correct answer is :

**18,300**