The number 1 3 5 7 99 and 128 are multiplied...

Home / Arithmetic Ability / Number System / Question

Examveda

The number 1, 3, 5, 7. . . . . 99 and 128 are multiplied together. The number of zeros at the end of the product must be -

A. 19

B. 22

C. 7

D. Nil

Answer: Option C

Solution (By Examveda Team)

→( 1, 3, 5, 7. . . . . 99 ) × 128

5	→	5¹
15	→	5¹
25	→	5²
35	→	5¹
45	→	5¹
55	→	5¹
65	→	5¹
75	→	5²
85	→	5¹
95	→	5¹
×
128	→	2⁷

5¹² + 2⁷ will make zero but since 2 comes 7 times, so only 7 zero will come.

This Question Belongs to Arithmetic Ability >> Number System

Join The Discussion

Related Questions on Number System

Find the remainder when 73 × 75 × 78 × 57 × 197 × 37 is divided by 34.

A. 32

B. 30

C. 15

D. 28

View Answer

View Answer

Find the remainder when 67⁹⁹ is divided by 7.

A. 4

B. 6

C. 1

D. 2

View Answer

View Answer

Let N = 1421 × 1423 × 1425. What is the remainder when N is divided by 12?

B. 9

C. 3

D. 6

View Answer

View Answer

Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:

A. 12, 24, 36

B. 11, 22, 33

C. 12, 24, 32

D. 5, 10, 15

View Answer

View Answer

More Related Questions on Number System