Question
If a nine-digit number 749x2778y is divisible by 72, then find the value of (x - y).
Asked in DSSSB Court Attendant · 2026
Divisibility and Remainder · Quantitative Aptitude
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If one divisor is already a multiple of another, checking the larger divisor is enough.
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Watch this lesson to revise the shortcut rules for divisibility by 2, 4 and 8.
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Questions Asked from Divisibility Rules: 2; 4; 8 in Previous Exams
See how often Divisibility Rules: 2; 4; 8 has appeared in previous-year questions across major government exams.
12UPSC Questions Asked in These Years:2010, 2012, 2015, 2016, 2017, 2019, 2020, 2021, 2022, 2023, 2024, 2026
10SSC Questions Asked in These Years:2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
8Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2023, 2024, 2025, 2026
14State PSC Questions Asked in These Years:2002, 2004, 2012, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Divisibility Rules: 2; 4; 8 has appeared in 44 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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