In a division sum, the dividend is 398, quotient is 15 and the remainder is 8. What is the divisor?

1. 31

2. 26

3. 17

4. 23

8 x 273 x 125 = ?

1. 27,300

2. 2,70,300

3. 2,73,000

4. 27,30,000

13,729 x 93 + 13,729 x 7 = ?

1. 23,62,900

2. 13,72,900

3. 6,86,450

4. 4,57,620

2,563 x 187 - 2,563 x 87 = ?

1. 2,56,300

2. 1,28,150

3. 3,84,450

4. none of these