Number System
91 SSC CGL Quantitative Aptitude previous year questions (PYQs) from 72 papers, 2023 to 2025, with answers and worked solutions.
About this chapter
- Difficulty: 77 easy · 14 moderate.
- Most-asked subtopics: Divisibility Rules and Missing Digits (47), Remainders by Congruence and Cyclicity (10), Division, Parity and Consecutive Integers (9).
- Updated 17 October 2026.
#1HCF and LCM Applications and Remainder Recipes
#2Divisibility Rules and Missing Digits
#3Divisibility Rules and Missing Digits
#4Divisibility Rules and Missing Digits
#5Divisibility Rules and Missing Digits
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#6Divisibility Rules and Missing Digits
#7Factors, Divisor Counting and Trailing Zeros
#8Divisibility Rules and Missing Digits
#9Remainders by Congruence and Cyclicity
#10Divisibility Rules and Missing Digits
#11Divisibility Rules and Missing Digits
#12Divisibility Rules and Missing Digits
#13Division, Parity and Consecutive Integers
#14Divisibility Rules and Missing Digits
#15Division, Parity and Consecutive Integers
#16Divisibility Rules and Missing Digits
#17Divisibility Rules and Missing Digits
#18Divisibility Rules and Missing Digits
#19Divisibility by Factorisation
#20Divisibility Rules and Missing Digits
#21Divisibility by Factorisation
#22Division, Parity and Consecutive Integers
#23Divisibility Rules and Missing Digits
#24HCF and LCM Laws and Fractions
#25Divisibility by Factorisation
#26Remainders by Congruence and Cyclicity
#27Divisibility Rules and Missing Digits
#28Divisibility Rules and Missing Digits
#29Divisibility Rules and Missing Digits
#30Prime Numbers and Primality
#31Division, Parity and Consecutive Integers
#32Remainders by Congruence and Cyclicity
#33Divisibility Rules and Missing Digits
#34Divisibility Rules and Missing Digits
#35Divisibility Rules and Missing Digits
#36Divisibility Rules and Missing Digits
#37Divisibility Rules and Missing Digits
#38Remainders by Congruence and Cyclicity
#39Division, Parity and Consecutive Integers
#40Divisibility by Factorisation
#41Divisibility Rules and Missing Digits
#42Division, Parity and Consecutive Integers
#43Remainders by Congruence and Cyclicity
#44Divisibility Rules and Missing Digits
#45Divisibility by Factorisation
#46Factors, Divisor Counting and Trailing Zeros
#47Divisibility Rules and Missing Digits
#48Remainders by Congruence and Cyclicity
#49Divisibility Rules and Missing Digits
#50Divisibility Rules and Missing Digits
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