Successive Percentage
Successive Percentage is a Aptitude concept from the MPSC syllabus, tested in 2 past MPSC questions (2018, 2025). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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Real questions that test this
एका आयताची रुंदी a आणि लांबी b आहे, जर रुंदी 20% नी कमी केली आणि लांबी 10% नी वाढवली, तर नवीन आयताचे क्षेत्रफल ab च्या तुलनेत शेकडेवारीत किती आहे ? A rectangle has width a and length b. If the width is decreased by 20% and the length is increased by 10%, then what is the area of new rectangle in percentage compared to ab ?
New width = 0.8a, new length = 1.1b. New area = (0.8a) * (1.1b) = 0.88ab, which is 88% of the original area ab.
जर a 60% b आहे, b 40% c आहे, c 20% d आहे, तर 6d हे 20a च्या किती टक्के आहे ?
Express 'a' in terms of 'd' using the given percentages: a = 0.6b, b = 0.4c, c = 0.2d. Thus, a = 0.6 * 0.4 * 0.2 * d = 0.048d. We need to find what percentage 6d is of 20a, which is (6d / 20a) * 100. Substituting a = 0.048d gives (6 / (20 * 0.048)) * 100 = 625%.