TS ICET| Arithmetic ability| Divisibility Problems

  Divisibility Problems 


1)  What is the unit digit of 1! + 2! + 3! + ……+ 88! + 89!?

(a) 5

(b) 3

(c) 1

(d) 8

 

2) If 3 divided the integer n, the remainder is 2. Then, what will be the remainder when 7n is divided by 3

(a) 3

(b) 2

(c) 6

(d) 4

 

3) What is the remainder when 1294*1298 is divided by 16.

(a) 14

(b) 11

(c) 12

(d) 10

 

4) 310 + 510 is divisible by

 

(a) 34

(b) 26

(c) 8

(d) 20

 

5) What is remainder obtained if 45518 is divided by 19

 

(a) 0

(b) 3

(c) 4

(d) 1

 

 

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