Find out the wrong number in the series:
128, 64, 96, 360, 840, 3780
128 × 0.5 = 64
64 × 1.5 = 96
96 × 2.5 = 240 (360)
240 × 3.5 = 840
840 × 4.5 = 3780No discussions yet. Be the first to start!
You must be logged in to participate in the discussion.
login Login to DiscussWhat should come in place of the question mark '?' in the following number series?
6, 19, 59, 180, 544, ?
The pattern of the series is
6 × 3 + 1 = 19
19 × 3 + 2 = 59
59 × 3 + 3 = 180
180 × 3 + 4 = 544
544 × 3 + 5 = 1637
Find the wrong number in the given series:
3, 4, 20, 101, 357, 935, 2278The number pattern in the series can be decoded as:
⇒ 3
⇒ 4 – 3 = 1 = 14
⇒ 20 – 4 = 16 = 24
⇒ 101 – 20 = 81 = 34
⇒ 357 – 101 = 256 = 44
⇒ 982 – 357 = 625 = 54
⇒ 2278 – 982 = 1296 = 64
∴ The incorrect number in the series is 935Find the wrong number in the given series:
10, 6, 5, 9, 16, 4110 × 0.5 + 1 = 6
6 × 1 – 1 = 5
5 × 1.5 + 1 = 8.5
8.5 × 2 – 1 = 16
16 × 2.5 + 1 = 41What will come in the place of the question mark ‘?’ in the following question?
35, 48, 63, ?, 99, 120CALCULATIONS:
⇒ 52 + 10 = 35
⇒ 62 + 12 = 48
⇒ 72 + 14 = 63
⇒ 82 + 16 = 80
⇒ 92 + 18 = 99
⇒ 102 + 20 = 120
What will come in the place of the question mark ‘?’ in the following question?
11, 29, 49, ?, 95, 121
CALCULATIONS:
11 × 1 + 0 = 11
⇒ 12 × 2 + 5 = 29
⇒ 13 × 3 + 10 = 49
⇒ 14 × 4 + 15 = 71
⇒ 15 × 5 + 20 = 95
⇒ 16 × 6 + 25 = 121