Question

What is the digit in the unit’s place of 251?

1
2
4
8

Answer 1

Answer:

The correct option is D.

Explanation:

Last digit of any number shows a definite pattern.

21 (24n+1) = 2

22 (24n+2) = 4

23 (24n+3) = 8

24 (24n+4) = 6

25 (24n+1) = 32

Cyclicity of 2 is 4 → 2, 4, 8, 6

251 = 24n+3  

So, the digit in unit's place is 8.

Answer 2

Given:

A number 251 is given.

To Find:

we have to find the unit place in the given number?

Explanation:

• We have given a number which is 251.
• Every number place digits which are depend upon their postion in any of the number.
• Like we can say that the last digit of the ny number is considered as unit digit in indian numbering system.
• The digit before the last digit in any number is called as ten place digit.
• The digit which is at the third place from the last  digit in any number is called as hundred place digit.
• The digit which is at Fourth place from the last  digit in any number is called as thoudsand place digit.
• The digit which is at fifth place from the last  digit in any number is called as ten thousand place digit.

Hence, in the given number 1 is the unit place digit.