BCECE SERIES Mathematics
Congruence
1 previous year questions.
Volume: 1 Ques
Yield: Medium
High-Yield Trend
1
2017 Chapter Questions 1 MCQs
01
PYQ 2017
medium
mathematics ID: bcece-20
If a ≡ b (mod m) and x is an integer, then which of the following is incorrect ?
1
(a + x) ≡ (b + x)(mod m)
2
(a - x) ≡ (b - x)(mod m)
3
ax ≡ bx (mod m)
4
(a - x) ≡ (b + x) (mod m)