Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 27)
27.
On dividing a number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder ?
4
5
6
7
Answer: Option
Explanation:

Formula: (Divisor*Quotient) + Remainder = Dividend.

Soln:

(56*Q)+29 = D -------(1)

D%8 = R -------------(2)

From equation(2),

((56*Q)+29)%8 = R.

=> Assume Q = 1.

=> (56+29)%8 = R.

=> 85%8 = R

=> 5 = R.

Discussion:
181 comments Page 7 of 19.

Sudhakar.batti said:   1 decade ago
Let the number be x, so when x is divisible by 56 the remainder is 29.

56*y+29 = x.

When it is divided by 8.x/8 = 56*y/8+29/8.

When 29 is divided by 8 remainder will be 5.

Divyesh said:   5 years ago
We can solve this type of question by a simple trick.
We know 56*3=168.
Now add 29 to 168 =197.
Now 197/56 remainder is 29(Because we add 29).
So, now 197/8 remainder is 5.
(3)

Thirumal said:   1 decade ago
These is very easy friends.

First add 56 with 29 because it is the reminder so by adding we get 85.

Then divide these 85 with give number 8 you will get reminder as 5.

Kreguri nikhil said:   1 decade ago
Let x be the number
as per the question -> x=56Q+29 so substitute any number in Q
let Q=1 then x=56*1+29=85

Now divide x by 8,the remainder obtained is the answer.

Maitri said:   1 decade ago
D = 56Q+29 ----> (1).

D = 8q+r -----> (2).

Convert (1) to the form of (2).

D = 56Q+29 = (8*7)Q+24+5 = (8*7)Q+(8+3)+5 = 8(7Q+3)+5.

Therefore, remainder is 5.

Varun said:   1 decade ago
Let x be the number and y be the quotient.

x = 56*y + 29.

x = (8*7*y) + ((8*3) +5).

x = 8(7y+3) + 5.

So if the number is divided by 8, we get the remainder as 5.

P.sairam said:   1 decade ago
If we take a number which is divisible by 56 having reminder 29.

I take 141/56 it give 29 reminder.

Now the same number is divided by 8 it will give reminder as 5.

Piya said:   1 decade ago
Let k is the quotient. Then.

56k+29 = 8*7k+(8*3+5) make it in form of 8 so that easily we can take 8 as a common.

56k+29 = 8(7k+3)+5

So here 5 is the remainder.

Anita said:   8 years ago
Suppose the remainder obtained while dividing x by 61 is 2. Then, What is the remainder obtained while dividing x to the power of 7 by 61?

Can anyone solve this?

Abhi said:   1 decade ago
Given number is 56 and 56 is a multiple of 8 so every no divided.

By 56 is also divisible by 8 hence.

The remainder i.e. 29.

29/8 gives Remainder 5.

Hence 5.


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