Question
There are 156 boy students and 143 girl students in a school. The principal wants to divide them in sections, such that a section can have only boys or only girls. If all sections should have the same number of students, and the principal wants to have as fewer sections as possible, how many sections would be there in the school?
Asked in RRB Group D · 2026
LCM and HCF · Quantitative Aptitude
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Do not confuse HCF with LCM: use HCF when looking for the greatest value that divides all quantities, and LCM when looking for the smallest value divisible by all quantities.
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Questions Asked from HCF: Prime Factorisation & Euclidean Algorithm in Previous Exams
See how often HCF: Prime Factorisation & Euclidean Algorithm has appeared in previous-year questions across major government exams.
15UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2026
9SSC Questions Asked in These Years:2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
8Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2023, 2024, 2025, 2026
15State PSC Questions Asked in These Years:2002, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
HCF: Prime Factorisation & Euclidean Algorithm has appeared in 47 previous-year exam questions, most frequently in UPSC, State PSC and SSC.
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