Select the number cluster from among the given options that can replac

1.	Select the number cluster from among the given options that can replace the question mark (?) in the following series.2-4-6-8; 3-6-9-12; 4-8-12-16; ?1. 5-8-11-152. 5-7-9-113. 5-10-15-204. 5-6-7-8
Answer» Correct Answer - Option 3 : 5-10-15-20 The logic is: 2-4-6-8 → 2 × 1 = 2, 2 × 2 = 4, 2 × 3 = 6, 2 × 4 = 8 3-6-9-12 → 3 × 1 = 3, 3 × 2 = 6, 3 × 3 = 9, 3 × 4 = 12 4-8-12-16 → 4 × 1 = 4, 4 × 2 = 8, 4 × 3 = 12, 4 × 4 = 16 Similarly, 5-10-15-20 → 5 × 1 = 5, 5 × 2 = 10, 5 × 3 = 15, 5 × 4 = 20 Hence, ‘5-10-15-20’ is the correct answer.

Select the number cluster from among the given options that can replace the question mark (?) in the following series.2-4-6-8; 3-6-9-12; 4-8-12-16; ?1. 5-8-11-152. 5-7-9-113. 5-10-15-204. 5-6-7-8

Answer» Correct Answer - Option 3 : 5-10-15-20

The logic is:

2-4-6-8 → 2 × 1 = 2, 2 × 2 = 4, 2 × 3 = 6, 2 × 4 = 8

3-6-9-12 → 3 × 1 = 3, 3 × 2 = 6, 3 × 3 = 9, 3 × 4 = 12

4-8-12-16 → 4 × 1 = 4, 4 × 2 = 8, 4 × 3 = 12, 4 × 4 = 16

Similarly,

5-10-15-20 → 5 × 1 = 5, 5 × 2 = 10, 5 × 3 = 15, 5 × 4 = 20

Hence, ‘5-10-15-20’ is the correct answer.