Standard Mathematics Primary 6 Ratio

In a Primary 6 class of 48 students, 18 are boys. Find the ratio of girls to the total number of students in its simplest form.

A 30 : 48
B 3 : 5
C 18 : 48
D 5 : 8
Show Worked Solution

Worked Solution

Step 1: Find the number of girls. Girls = 48 − 18 = 30. Step 2: Form the ratio of girls to total students. Girls : Total = 30 : 48. Step 3: Simplify by dividing both terms by their GCD. GCD(30, 48) = 6, so 30 ÷ 6 : 48 ÷ 6 = 5 : 8. Answer: 5 : 8

Correct answer: 5 : 8

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free