Question

The 5-digit number 7a35b is divisible by 45, where a and b are positive integers. What is the value of (a + b)?

Asked in RRB NTPC (UG) CBT-I · 2026
Divisibility and Remainder · Quantitative Aptitude
Exam PYQ4 Options
Quantitative AptitudeNumber SystemDivisibility and RemainderDivisibility Rules: 2, 4, 8RRB NTPC (UG) CBT-I2026
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A number is divisible by 4 if the number formed by its last two digits is divisible by 4.

Correct AnswerCorrect option for this question
Option C — 12

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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.

High Exam Frequency
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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