If 20% of a class of 45 students walk to school, how many students do NOT walk to school?
Answer and explanation
Correct answer: C. 36
- Step 1: Percentage that do not walk = 100% - 20% = 80%. Step 2. Calculate 80% of 45: 0.80 45 = 36 students. Answer: 36. Why not the others:* 9 is the number of students who DO walk (20% of 45); 25 and 30 are incorrect subtraction errors.
Practise more Number Operations, Proportions and Pre-algebra.
Free questions with an explanation for every one, and full timed Ghana Teacher Licensure Examination mock tests.
More Number Operations, Proportions and Pre-algebra questions
- A school received a capitation grant of GH₵ 24,000. If 3/8 was spent on teaching learning materials, how much was spent on TLMs?
- In a school of 600 students, the ratio of boys to girls is 7 : 5. How many girls are enrolled in the school?
- A teacher earns a gross monthly salary of GH₵ 3,200. If 5.5% is deducted for SSNIT pension, what is the SSNIT deduction?
- The pass rate in an annual district exam rose from 64% to 80%. What was the percentage increase in the pass rate?
- Solve for k in the proportional equation: 3 / 7 = k / 56.
- If 12 teachers can complete grading an exam cohort in 6 hours, how many hours will 9 teachers take at the same rate?