Explanation

6-2=4, 12-6=6, 20-12=8, 30-20=10  

Differences go 4, 6, 8, 10... next is 12  

So 30 + 12 = 42

Last verified on 13-06-2026

Explanation

Pattern: Multiply by 2 and add 2.

• 3 × 2 + 2 = 8
• 8 × 2 + 2 = 18
• 18 × 2 + 2 = 38
• 38 × 2 + 2 = 78
• 78 × 2 + 2 = 158

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Explanation

Pattern:

1^3 + 1 = 1 + 1 = 2  

2^3 + 2 = 8 + 2 = 10  

3^3 + 3 = 27 + 3 = 30  

4^3 + 4 = 64 + 4 = 68  

5^3 + 5 = 125 + 5 = 130  

Next term = 6^3 + 6 

= 216 + 6 

= 222

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Explanation

Given numbers = 1, 5, 7, 9, 11

Add 13

New series = 1, 5, 7, 9, 11, 13

Total numbers = 6, which is even

For even numbers, median = average of middle 2 numbers

Middle 2 numbers = 3rd and 4th number = 7 and 9

Median = (7 + 9) / 2

= 16 / 2

= 8

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Explanation

Sequence = Yellow, Green, Blue, White

Total colours in one cycle = 4

Find position 38

Divide 38 by 4

38 / 4 = 9 remainder 2

Remainder 2 means 2nd colour in the sequence.

1st = Yellow

2nd = Green

3rd = Blue  

4th = White

So 38th position colour = Green

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