Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 30)
30.
What will be remainder when (6767 + 67) is divided by 68 ?
1
63
66
67
Answer: Option
Explanation:

(xn + 1) will be divisible by (x + 1) only when n is odd.

(6767 + 1) will be divisible by (67 + 1)

(6767 + 1) + 66, when divided by 68 will give 66 as remainder.

Discussion:
70 comments Page 5 of 7.

Nivas said:   9 years ago
The formula is a^n + b^n is divisible by a + b if n is odd.

Minaxi said:   1 decade ago
67((i^67+1)) = 67(1+1) => 67*2 = 134 => 134-68 = 66.

Vasanthi said:   6 years ago
I didn't understand the concept. Please explain it for me.
(2)

Sanjay said:   10 years ago
Simple method of this problem is 67+67 = 134-68 = 66.

Deepak Parmar said:   7 years ago
How to find unit digit of any number? Please tell me.

Aakash said:   7 years ago
Please anyone explain clearly. I can't understand.

Mega said:   1 decade ago
Cannot understand the concept please xplain.

Wesly said:   6 years ago
Thanks for the clear explanation, @Padmaja.

Yogesh said:   1 decade ago
When x pow even then. what's the procedure?

Reshma said:   9 years ago
What would be the solution when n is even?


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