Question

which number will replace the question mark in the following 5 8 7,11 17 15,21 33 ? ,?
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Answer 1

Answer:

5 8 7, 11 17 15, 21 33 29, 43

Answer 2

Solution :-

→ (5 8 7)

→ (11 17 15)

→ (21 33 ?)

Logic :-

• first digit + 3 * n = second digit
• second digit - n = third digit .

Explanation :-

(5 8 7)

→ 5 + 3 * 1 = 5 + 3 = 8

n = 1 ,

→ 8 - 1 = 7

(11 17 15)

→ 11 + 3 * 2 = 11 + 6 = 17

n = 2,

→ 17 - 2 = 15

similarly,

→ (21 33 ?)

→ 21 + 3 * 4 = 21 + 12 = 33

n = 4,

→ 33 - 4 = 29 (Ans.)

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