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Aptitude · Q527

Number System

Competitive Exams · Aptitude · question 527

Q527

If n is any positive integer, 34n - 43n is always divisible by :

A.
7
B.
12
C.
17
Answer
D.
145

Answer: Option C

Solution

Answer: Option C
Solution:
Putting n = 1, we get (34n - 43n)
= (34 - 43)
= (81 - 64)
= 17
Which is divisible by 17