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

    âš¡ Month End Offer - Flat 52% Off On All Courses! Enroll Now âš¡
    00:00:00 AM Left

    Question

    In a bio gas plant the population of yeast bacteria

    increases at a rate of 19% per annum but there is an additional annual increase of 1% in population due to various other inputs in the system. The percentage increase in the yeast population after 2 years is:
    A 41% Correct Answer Incorrect Answer
    B 44% Correct Answer Incorrect Answer
    C 45% Correct Answer Incorrect Answer
    D 40% Correct Answer Incorrect Answer

    Solution

    The population of bacteria increases by 19% per annum and 1% due to additional factors, so every year, there is a net increase of 20% in yeast population. Let the population at present be x. Population after 2 years = x × 120/100 × 120/100 = 144x/100 = 1.44x % increase in population = [(1.44x - x)/x] × 100 = 44

    Practice Next
    More Percentage Questions

    Relevant for Exams:

    ask-question