📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!


    Question

    src="https://www.ixambee.com/questionimage/Chapter/1659603720-Q14.png" alt="" /> The number of students whose height is in the class interval 170-175 is what per cent less than the number of students whose height is in the interval 165-170? (correct to one decimal place)
    A 17.3% Correct Answer Incorrect Answer
    B 11.5% Correct Answer Incorrect Answer
    C 14.3% Correct Answer Incorrect Answer
    D 19.5% Correct Answer Incorrect Answer

    Solution

    Number of students in the interval of 170-175 = 12 Number of students in the interval of 165-170 = 14 Difference = 14 – 12 = 2 Percentage = (Difference/Number of students in the interval of 165-170) × 100 ⇒ Percentage = (2/14) × 100 ⇒ Percentage ≈ 14.28 ≈ 14.3 ∴ Students in the class interval of 170-175 are nearly 14.3% less than the students in the class interval of 165-170

    Practice Next

    Relevant for Exams:

    ask-question

    Not sure which exam is best for you Talk to our expert

    Get My Free Call