Question

T B 40 , R D 72 , V G 154 , (?), X P 384

Answer 1

Answer:

TV 40,rs

Step-by-step explanation:

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Answer 2

• "TK220" is correct number in the given series .

Given :- TB40 , RD72 , VG154 , (?) , XP384

To Find :- What will come in place of question mark ?

Logic :-

• First alphabet = subtract 2, add 4, subtract 2, add 4 .
• Second alphabet = +2, +3, +4, +5 .
• Numerical value = First alphabet × Second alphabet .

Solution :-

We know that, Position of english alphabets from left is :- 1A, 2B, 3C, 4D, 5E, 6F, 7G, 8H, 9I, 10J, 11K, 12L, 13M, 14N, 15O, 16P, 17Q, 18R, 19S, 20T, 21 U, 22V, 23W, 24X, 25Y and 26Z .

First alphabet :- Subtract 2 alternatively and add 4 alternatively . { Or Add 2 alternatively . }

→ T - 2 = 20 - 2 = 18 => R

→ R + 4 = 18 + 4 = 22 => V

→ V - 2 = 22 - 2 = 20 => T

→ T + 4 = 20 + 4 = 24 => X

Second alphabet :-

→ B + 2 = 2 + 2 = 4 => D

→ D + 3 = 4 + 3 = 7 => G

→ G + 4 = 7 + 4 = 11 => K

→ K + 5 = 11 + 5 = 16 => P

Numerical value :-

→ T × B = 20 × 2 = 40

→ R × D = 18 × 4 = 72

→ V × G = 22 × 7 = 154

→ T × K = 20 × 11 = 220

→ X × P = 24 × 16 = 384 .

Therefore, we can conclude that, "TK220" will replace the question mark .

Learn more :-

423:24::534:60::752:70::245:?

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Use inductive reasoning to determine the next two terms in the sequence:

A , 6 , D , 16 , H , 46 , M , 136

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