Explanation

Sequence: 10, 8, 6, y

Pattern: -2 each time

10 - 2 = 8

8 - 2 = 6

6 - 2 = 4

Last verified on 15-10-2026

Explanation

Explanation

Explanation

1. Odd Positions: 3, 4, 6
   • Pattern: +1, +2
2. Even Positions: 4, 5, 6
   • Pattern: +1, +1

The missing number is in the 6th position, which belongs to the even-position series.

Calculation: (5 + 1 = 6)

Explanation

Pattern is -10 each time:

100 - 10 = 90

90 - 10 = 80

80 - 10 = 70

70 - 10 = 60

60 - 10 = 50

Last verified on 12-10-2026

Explanation

• 35 + 13 = 48

• 48 + 15 = 63

• 63 + 17 = 80

• 80 + 19 = 99

Rule: Add consecutive odd numbers: 13, 15, 17, 19.

Explanation

Pattern is +10, +15, +20, +25

10 + 10 = 20

20 + 15 = 35

35 + 20 = 55

55 + 25 = 80

Last verified on 11-10-2026

Explanation

Pattern: x2 each time

5 x 2 = 10

10 x 2 = 20

20 x 2 = 40

40 x 2 = 80

Last verified on 11-10-2026

Explanation

2 + 3 = 5

5 + 7 = 12

12 + 11 = 23

23 + 15 = 38

38 + 19 = 57

57 + 23 = 80

Last verified on 31-03-2026

Explanation

Series: 13, 32, 24, 43, 35, ?, 46, 65, 57, 76

Notice the pattern alternates:

+19, −8, +19, −8, +19, −8, +19, −8, +19

So:

35 + 19 = 54

Then 54 − 8 = 46, which matches.