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 19 of 19.

Baburammca said:   7 years ago
This question is to simple. My solution follows.

Remainder / given number= 29÷8=5.
This method is applicable to this type of question.

For more example
On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of this number is divided by 5?
3*3=9.
So 9/5=4.


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