Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 10)
10.
What is the unit digit in {(6374)1793 x (625)317 x (341491)}?
2
3
5
Answer: Option
Explanation:

Unit digit in (6374)1793 = Unit digit in (4)1793

    = Unit digit in [(42)896 x 4]

    = Unit digit in (6 x 4) = 4

Unit digit in (625)317 = Unit digit in (5)317 = 5

Unit digit in (341)491 = Unit digit in (1)491 = 1

Required digit = Unit digit in (4 x 5 x 1) = 0.

Discussion:
123 comments Page 10 of 13.

Sabu said:   7 years ago
Understand the answer, Thank you, @Seema.

Boite said:   4 years ago
Thank you all for explaining the answer.

Revathi said:   1 decade ago
I cant understand... explain (6*4)....

Abhignareddy said:   1 decade ago
(2467)^153*(341)^72 solve this please.

Supreet singh said:   1 decade ago
I too. !

But hemanth method is good.

Praveen said:   1 decade ago
Power are not equals then what we do.

Pieker said:   2 years ago
Thanks All for explaining the answer.
(5)

Vasanthi said:   1 decade ago
@Karthi
Unit digit means last digit.

Rajesh Kaibarta said:   9 months ago
Very good explanation, Thanks all.
(2)

Sravanthi said:   9 years ago
@Seema, you have done a good job.


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