Advertisements
Advertisements
Question
Find the least positive value of x such that 71 ≡ x (mod 8)
Advertisements
Solution
To find the least value of x such that
71 ≡ x (mod 8)
71 ≡ 7 (mod 8)
∴ x = 7. ...[∵ 71 – 7 = 64 which is divisible by 8]
APPEARS IN
RELATED QUESTIONS
Find the least positive value of x such that 96 ≡ `x/7` (mod 5)
Find the least positive value of x such that 5x ≡ 4 (mod 6)
If x is congruent to 13 modulo 17 then 7x – 3 is congruent to which number modulo 17?
Solve 3x – 2 ≡ 0 (mod 11)
What is the time 100 hours after 7 a.m.?
What is time 15 hours before 11 p.m.?
Today is Tuesday. My uncle will come after 45 days. In which day my uncle will be coming?
Prove that 2n + 6 × 9n is always divisible by 7 for any positive integer n
The duration of flight travel from Chennai to London through British Airlines is approximately 11 hours. The airplane begin its journey on Sunday at 23:30 hours. If the time at Chennai is four and half hours ahead to that of London’s time, then find the time at London, when will the flight land at London Airport?
74k ≡ _____ (mod 100)
