Question

factual questions on number system??

Answer 1

Hey bro...

Decimal number system, also called Hindu-Arabic, or Arabic,number system, in mathematics, positionalnumeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. It also requires a dot (decimal point) to represent decimal fractions.




Number System 
Aptitude



Q.

The product of 4 consecutive even numbers is always divisible by:

✖ A.

600

✖ B.

768

✖ C.

864

✔ D.

384

  

Solution:
Option(D) is correct

To solve this question, we need to know two facts.

Fact 1:
The product of 4 consecutive numbers is always divisible by 4!.

Fact 2:
Since, we have 4 even numbers, we have an additional 2 available with each number.

Now, using both the facts, we can say that the product of 4 consecutive even numbers is always divisible by,

=(24)×4!

=16×24

=384


hope it helps