Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 10)

Numbers

10.

What is the unit digit in {(6374)¹⁷⁹³ x (625)³¹⁷ x (341⁴⁹¹)}?

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 12 of 13.

Karthi said: 1 decade ago

What is Unit digit ?

Pratiksha said: 1 decade ago

What is unit digit ?

Karishma said: 9 years ago

896 * 2 = 1792.....?

Anitha said: 1 decade ago

I can't understand.

Bhavani said: 9 years ago

Thank you @Seema.

Renu said: 9 years ago

Thank you @Seema.

Teju said: 8 years ago

Thanks @Sowjanya.

Raj said: 8 years ago

Thanks @Jhansi.

Keerthinayak said: 6 years ago

Thanks @Seema.

Shivam rana said: 6 years ago

Thanks @Seema.

Post your comments here:

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers