1. (2432 + 587 + 1415) ÷ 378 = ?
(1) 18
(2) 16
(3) 12
(4) 9
(5) 22

2. 74.7 + 13.07 × 6.91 = ?
(1) 178
(2) 186
(3) 152
(4) 158
(5) 165

3.27 × 373 ÷ 16 = ?
(1) 630
(2) 644
(3) 598
(4) 614
(5) 618

4. √230 * √15 = ?
(1) 70
(2) 90
(3) 40
(4) 60
(5) 50

5. 1725 ÷ 35 ÷ 12 = ?
(1) 3
(2) 6
(3) 4
(4) 5
(5) 7

Directions (6-10) : What should come in place of the question mark (?) in the following number series ?

6. 10, 18, 28, 40, 54, ?
(1) 66
(2) 70
(3) 68
(4) 72
(5) None of these

7. 18, 72, 9, ?, 6.75, 135
(1) 108
(2) 102
(3) 144
(4) 160
(5) None of these

8. 187.5, 182, 171, ?, 132.5, 105, 72
(1) 145.5
(2) 155.5
(3) 154.5
(4) 144.5
(5) None of these

9. 435, 556, 700, 869, ?, 1290
(1) 1045
(2) 1094
(3) 1038
(4) 1068
(5) None of these

10. 7, 35, 175, ?, 4375, 21875
(1) 1575
(2) 875
(3) 675
(4) 1275
(5) None of these

1. (3)

2. (5)

3. (1)

4. (4)

5. (3)

6. (2)
The difference between consecutive terms is 8, 10, 12, 14 and so on.

7. (1)
The pattern is ×4, ÷8 , ×12, ÷16 and so on.

8. (3)
The pattern is -5.5, -11, -16.5, -22 and so on.

9. (5)
The difference between consecutive terms is 11^2, 12^2, 13^2 and so on.

10. (2)

The pattern is ×5, ×5 and so on.