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Each letter in the given series is multiplied with 2 to get the next letter in the series.
A = 1 and 1 × 2 = 2 and the 2nd letter is B.
B = 2 and 2 × 2 = 4 and the 4th letter is D.
Similarly, H = 8 and 8 × 2 = 16, and the 16th letter P is the missing letter.
So, Correct Option is Option A
D, F, G, H, J, K, L, M, N, ____
The given series consists of consonants in increasing order, starting with D.
The next consonant in the series is P.
So, Correct Option is Option B
G + 3, J + 4, N + 3, Q + 4, U + 3 , _____
The next letter in the series is U + 3 = X.
So, Correct Option is Option C.
BY, CX, EV, GT, KP, _____
The given series is a mixed series.
Hence, the missing pair is OA.
The given series is a mixed series.
The alternate groups are in mixed series.
QLR, RNU, SPX are in one series.
Hence, the next group in the series is TRA.
The given series is a mixed series.
Hence, the missing group is UIJ.
∵ The next two prime numbers are 11 and 13 whose product is 143. The 143rd letter is (26 × 5 + 13) M.
∴ 11M13 is the next term.
If the first five letters of the alphabet series in the reverse order, then next six are in reverse order, then next seven letters are in reverse order, then remaining letters are in reverse order.
Q. Which letter is 5^{th} to the left of 12^{th} letter from the right hand side of the alphabet series?
When the letters are reversed in the group of Five, six, and seven letters.
5th to the left of 12^{th} from the right end (27 12 = 15^{th} from left) means, 15 – 5 = 10^{th }that lies in the 2^{nd}group(611).
Therefore, 6 + 11 = 17 – 10 = 7^{th }letter i.e. “G”.
If the first five letters of the alphabet series in the reverse order, then next six are in reverse order, then next seven letters are in reverse order, then remaining letters are in reverse order.
Q. Which letter is 5^{th} to the right of 12^{th} letter from the right hand side of the alphabet series?
When the letters are reversed in the group of Five, six, seven and letters.
5th to the right of 12th from right end (27 – 12 = 15th from left) means, 15 + 5 = 20th
Which lies in 4th group(1926). Therefore,
19 + 26 = 45 ; 45 – 20 = 25th = “Y”.
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